StructArrays (for Complex arrays) and DifferentialEquations not working together - Looks like Broadcasting issue

[Elycoo]

Hi,
I'm trying to use StructArrays with DifferentialEquations.jl.
But I can't make it works together 😦

From the stacktrace I understand that when the differential equation package tries to set all the lattice sites to abstol like @.. u = abstol + ... then there is an error.

Is there any solution for that?

Here is my MWE:

using StructArrays, DifferentialEquations
const s = StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}
function ghost_holomorphic_flow_NN!(dpsi::s, psi::s, param, time::Float64)
    (L, M) = param
    for t in 1:M, x=1:L        
        dpsi.re[x,t] = 1.0
        dpsi.im[x,t] = 1.0
    end
end
L = 10
M = 12
param = (L,M)
tspan = (0.0, 1.0)
ghost_psi  = zeros(ComplexF64,L,M)
pad_psi0 = StructArray(ghost_psi)
prob = ODEProblem(ghost_holomorphic_flow_NN!, pad_psi0, tspan, param)
integrator = init(prob, Tsit5())
# sol = solve!(integrator)

Stacktrace:
  [1] component(x::Float64, i::Symbol)
    @ StructArrays ~/.julia/packages/StructArrays/0C03x/src/interface.jl:10
  [2] macro expansion
    @ ~/.julia/packages/StructArrays/0C03x/src/utils.jl:82 [inlined]
  [3] foreachfield_gen(::StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, ::StructArrays.var"#37#38"{Int64}, ::StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, ::Float64)
    @ StructArrays ~/.julia/packages/StructArrays/0C03x/src/utils.jl:82
  [4] foreachfield(f::StructArrays.var"#37#38"{Int64}, x::StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, xs::Float64)
    @ StructArrays ~/.julia/packages/StructArrays/0C03x/src/utils.jl:85
  [5] setindex!
    @ ~/.julia/packages/StructArrays/0C03x/src/structarray.jl:361 [inlined]
  [6] _setindex!
    @ ./abstractarray.jl:1290 [inlined]
  [7] setindex!
    @ ./abstractarray.jl:1267 [inlined]
  [8] macro expansion
    @ ./broadcast.jl:984 [inlined]
  [9] macro expansion
    @ ./simdloop.jl:77 [inlined]
 [10] copyto!
    @ ./broadcast.jl:983 [inlined]
 [11] copyto!
    @ ./broadcast.jl:936 [inlined]
 [12] materialize!
    @ ./broadcast.jl:894 [inlined]
 [13] materialize!
    @ ./broadcast.jl:891 [inlined]
 [14] fast_materialize!
    @ ~/.julia/packages/FastBroadcast/lHiEr/src/FastBroadcast.jl:31 [inlined]
 [15] ode_determine_initdt(u0::StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, t::Float64, tdir::Float64, dtmax::Float64, abstol::Float64, reltol::Float64, internalnorm::typeof(DiffEqBase.ODE_DEFAULT_NORM), prob::ODEProblem{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Tuple{Float64, Float64}, true, Tuple{Int64, Int64}, ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, SciMLBase.StandardODEProblem}, integrator::OrdinaryDiffEq.ODEIntegrator{Tsit5{typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}, true, StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Nothing, Float64, Tuple{Int64, Int64}, Float64, Float64, Float64, Float64, Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}, ODESolution{ComplexF64, 3, Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}, Nothing, Nothing, Vector{Float64}, Vector{Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}}, ODEProblem{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Tuple{Float64, Float64}, true, Tuple{Int64, Int64}, ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, SciMLBase.StandardODEProblem}, Tsit5{typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}, OrdinaryDiffEq.InterpolationData{ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}, Vector{Float64}, Vector{Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}}, OrdinaryDiffEq.Tsit5Cache{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Matrix{ComplexF64}, OrdinaryDiffEq.Tsit5ConstantCache{Float64, Float64}, typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}}, DiffEqBase.DEStats}, ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, OrdinaryDiffEq.Tsit5Cache{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Matrix{ComplexF64}, OrdinaryDiffEq.Tsit5ConstantCache{Float64, Float64}, typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}, OrdinaryDiffEq.DEOptions{Float64, Float64, Float64, Float64, PIController{Rational{Int64}}, typeof(DiffEqBase.ODE_DEFAULT_NORM), typeof(LinearAlgebra.opnorm), Nothing, CallbackSet{Tuple{}, Tuple{}}, typeof(DiffEqBase.ODE_DEFAULT_ISOUTOFDOMAIN), typeof(DiffEqBase.ODE_DEFAULT_PROG_MESSAGE), typeof(DiffEqBase.ODE_DEFAULT_UNSTABLE_CHECK), DataStructures.BinaryHeap{Float64, DataStructures.FasterForward}, DataStructures.BinaryHeap{Float64, DataStructures.FasterForward}, Nothing, Nothing, Int64, Tuple{}, Tuple{}, Tuple{}}, StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, ComplexF64, Nothing, OrdinaryDiffEq.DefaultInit})
    @ OrdinaryDiffEq ~/.julia/packages/OrdinaryDiffEq/iN7BJ/src/initdt.jl:23
 [16] auto_dt_reset!(integrator::OrdinaryDiffEq.ODEIntegrator{Tsit5{typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}, true, StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Nothing, Float64, Tuple{Int64, Int64}, Float64, Float64, Float64, Float64, Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}, ODESolution{ComplexF64, 3, Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}, Nothing, Nothing, Vector{Float64}, Vector{Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}}, ODEProblem{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Tuple{Float64, Float64}, true, Tuple{Int64, Int64}, ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, SciMLBase.StandardODEProblem}, Tsit5{typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}, OrdinaryDiffEq.InterpolationData{ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}, Vector{Float64}, Vector{Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}}, OrdinaryDiffEq.Tsit5Cache{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Matrix{ComplexF64}, OrdinaryDiffEq.Tsit5ConstantCache{Float64, Float64}, typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}}, DiffEqBase.DEStats}, ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, OrdinaryDiffEq.Tsit5Cache{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Matrix{ComplexF64}, OrdinaryDiffEq.Tsit5ConstantCache{Float64, Float64}, typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}, OrdinaryDiffEq.DEOptions{Float64, Float64, Float64, Float64, PIController{Rational{Int64}}, typeof(DiffEqBase.ODE_DEFAULT_NORM), typeof(LinearAlgebra.opnorm), Nothing, CallbackSet{Tuple{}, Tuple{}}, typeof(DiffEqBase.ODE_DEFAULT_ISOUTOFDOMAIN), typeof(DiffEqBase.ODE_DEFAULT_PROG_MESSAGE), typeof(DiffEqBase.ODE_DEFAULT_UNSTABLE_CHECK), DataStructures.BinaryHeap{Float64, DataStructures.FasterForward}, DataStructures.BinaryHeap{Float64, DataStructures.FasterForward}, Nothing, Nothing, Int64, Tuple{}, Tuple{}, Tuple{}}, StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, ComplexF64, Nothing, OrdinaryDiffEq.DefaultInit})
    @ OrdinaryDiffEq ~/.julia/packages/OrdinaryDiffEq/iN7BJ/src/integrators/integrator_interface.jl:346
 [17] handle_dt!(integrator::OrdinaryDiffEq.ODEIntegrator{Tsit5{typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}, true, StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Nothing, Float64, Tuple{Int64, Int64}, Float64, Float64, Float64, Float64, Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}, ODESolution{ComplexF64, 3, Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}, Nothing, Nothing, Vector{Float64}, Vector{Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}}, ODEProblem{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Tuple{Float64, Float64}, true, Tuple{Int64, Int64}, ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, SciMLBase.StandardODEProblem}, Tsit5{typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}, OrdinaryDiffEq.InterpolationData{ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}, Vector{Float64}, Vector{Vector{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}}}, OrdinaryDiffEq.Tsit5Cache{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Matrix{ComplexF64}, OrdinaryDiffEq.Tsit5ConstantCache{Float64, Float64}, typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}}, DiffEqBase.DEStats}, ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, OrdinaryDiffEq.Tsit5Cache{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Matrix{ComplexF64}, OrdinaryDiffEq.Tsit5ConstantCache{Float64, Float64}, typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}, OrdinaryDiffEq.DEOptions{Float64, Float64, Float64, Float64, PIController{Rational{Int64}}, typeof(DiffEqBase.ODE_DEFAULT_NORM), typeof(LinearAlgebra.opnorm), Nothing, CallbackSet{Tuple{}, Tuple{}}, typeof(DiffEqBase.ODE_DEFAULT_ISOUTOFDOMAIN), typeof(DiffEqBase.ODE_DEFAULT_PROG_MESSAGE), typeof(DiffEqBase.ODE_DEFAULT_UNSTABLE_CHECK), DataStructures.BinaryHeap{Float64, DataStructures.FasterForward}, DataStructures.BinaryHeap{Float64, DataStructures.FasterForward}, Nothing, Nothing, Int64, Tuple{}, Tuple{}, Tuple{}}, StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, ComplexF64, Nothing, OrdinaryDiffEq.DefaultInit})
    @ OrdinaryDiffEq ~/.julia/packages/OrdinaryDiffEq/iN7BJ/src/solve.jl:504
 [18] __init(prob::ODEProblem{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Tuple{Float64, Float64}, true, Tuple{Int64, Int64}, ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, SciMLBase.StandardODEProblem}, alg::Tsit5{typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}, timeseries_init::Tuple{}, ts_init::Tuple{}, ks_init::Tuple{}, recompile::Type{Val{true}}; saveat::Tuple{}, tstops::Tuple{}, d_discontinuities::Tuple{}, save_idxs::Nothing, save_everystep::Bool, save_on::Bool, save_start::Bool, save_end::Nothing, callback::Nothing, dense::Bool, calck::Bool, dt::Float64, dtmin::Nothing, dtmax::Float64, force_dtmin::Bool, adaptive::Bool, gamma::Rational{Int64}, abstol::Nothing, reltol::Nothing, qmin::Rational{Int64}, qmax::Int64, qsteady_min::Int64, qsteady_max::Int64, beta1::Nothing, beta2::Nothing, qoldinit::Rational{Int64}, controller::Nothing, fullnormalize::Bool, failfactor::Int64, maxiters::Int64, internalnorm::typeof(DiffEqBase.ODE_DEFAULT_NORM), internalopnorm::typeof(LinearAlgebra.opnorm), isoutofdomain::typeof(DiffEqBase.ODE_DEFAULT_ISOUTOFDOMAIN), unstable_check::typeof(DiffEqBase.ODE_DEFAULT_UNSTABLE_CHECK), verbose::Bool, timeseries_errors::Bool, dense_errors::Bool, advance_to_tstop::Bool, stop_at_next_tstop::Bool, initialize_save::Bool, progress::Bool, progress_steps::Int64, progress_name::String, progress_message::typeof(DiffEqBase.ODE_DEFAULT_PROG_MESSAGE), userdata::Nothing, allow_extrapolation::Bool, initialize_integrator::Bool, alias_u0::Bool, alias_du0::Bool, initializealg::OrdinaryDiffEq.DefaultInit, kwargs::Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ OrdinaryDiffEq ~/.julia/packages/OrdinaryDiffEq/iN7BJ/src/solve.jl:466
 [19] __init(prob::ODEProblem{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Tuple{Float64, Float64}, true, Tuple{Int64, Int64}, ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, SciMLBase.StandardODEProblem}, alg::Tsit5{typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False}, timeseries_init::Tuple{}, ts_init::Tuple{}, ks_init::Tuple{}, recompile::Type{Val{true}}) (repeats 5 times)
    @ OrdinaryDiffEq ~/.julia/packages/OrdinaryDiffEq/iN7BJ/src/solve.jl:67
 [20] #init_call#35
    @ ~/.julia/packages/DiffEqBase/L3EZU/src/solve.jl:28 [inlined]
 [21] init_call
    @ ~/.julia/packages/DiffEqBase/L3EZU/src/solve.jl:15 [inlined]
 [22] #init#36
    @ ~/.julia/packages/DiffEqBase/L3EZU/src/solve.jl:40 [inlined]
 [23] init(prob::ODEProblem{StructArray{ComplexF64, 2, NamedTuple{(:re, :im), Tuple{Matrix{Float64}, Matrix{Float64}}}, Int64}, Tuple{Float64, Float64}, true, Tuple{Int64, Int64}, ODEFunction{true, typeof(ghost_holomorphic_flow_NN!), LinearAlgebra.UniformScaling{Bool}, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, typeof(SciMLBase.DEFAULT_OBSERVED), Nothing}, Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, SciMLBase.StandardODEProblem}, args::Tsit5{typeof(OrdinaryDiffEq.trivial_limiter!), typeof(OrdinaryDiffEq.trivial_limiter!), Static.False})
    @ DiffEqBase ~/.julia/packages/DiffEqBase/L3EZU/src/solve.jl:33
 [24] top-level scope
    @ ~/test_struct_differential.jl:22
in expression starting at ~/test_struct_differential.jl:22

Thanks in advance!
Here is the discourse discussion.