Error occurred when executing AnyNodeAnthropic: Error 1 = OpenCV, Error 2 = 'NoneType' object is not subscriptable"

[piovis2023]

Context:
Windows 11 OS
Python 3.11
Conda environment

Anthropic and Gemini Anynodes work when making simple text based queries.
Here I tried another example from this repo.

Workflow: (copying the example from the repo)

Errors:

1. If I include the Preview image node in the workflow
   "Error occurred when executing PreviewImage:

'NoneType' object is not subscriptable"

2. If i EXCLUDE the Preview image node
   "Error occurred when executing AnyNodeAnthropic:

OpenCV(4.8.0) d:\a\opencv-python\opencv-python\opencv\modules\imgproc\src\color.simd_helpers.hpp:92: error: (-2:Unspecified error) in function '__cdecl cv::impl::`anonymous-namespace'::CvtHelper,struct cv::impl::A0xa7e5ea26::Set<1,-1,-1>,struct cv::impl::A0xa7e5ea26::Set<0,2,5>,3>::CvtHelper(const class cv::_InputArray &,const class cv::_OutputArray &,int)'

Invalid number of channels in input image:
'VScn::contains(scn)'
where
'scn' is 1"

Any help would is appreciated.