Crash when dragging data into plot area on MacOS

[ztqwerty]

Thanks for contributing to PlotJuggler. You are great!

I encountered some issues when installing / using PlotJuggler. The program crashed when I try to drag a data into the plot area
OS: MacOS Big Sur 11.7.6

Steps to reproduce (important)
I compiled PlotJuggler from source on MacOS (Big Sur 11.7.6) with CMake (debug mode). The compilation process is successful, and I can successfully run plotjuggler in terminal.

Then I am able to load some data (.ulg) from the main UI. The data list can be shown on the left panel. But when I try to drag some data to the plot area, it suddenly crashed. (100% reproducible, no matter I use my own data input or dummy sample data)

The terminal prints logs like below:
qt.qpa.fonts: Populating font family aliases took 273 ms. Replace uses of missing font family "Ubuntu" with one that exists to avoid this cost.
Loading compatible plugins from directory: "/usr/local/bin"
"libDataLoadCSV.dylib is a DataLoader plugin"
"libDataLoadMCAP.dylib is a DataLoader plugin"
"libDataLoadULog.dylib is a DataLoader plugin"
"libDataStreamSample.dylib is a DataStreamer plugin" ...disabled, unless option -t is used
"libDataStreamUDP.dylib is a DataStreamer plugin"
"libDataStreamWebSocket.dylib is a DataStreamer plugin"
"libDataStreamZMQ.dylib is a DataStreamer plugin"
"libParserDataTamer.dylib is a MessageParser plugin"
"libParserROS1.dylib is a MessageParser plugin"
"libParserROS2.dylib is a MessageParser plugin"
"libPublisherCSV.dylib is a StatePublisher plugin"
Type conversion already registered from type QString to type QwtText
"libToolboxFFT.dylib is a Toolbox plugin"
"libToolboxLuaEditor.dylib is a Toolbox plugin"
Type conversion already registered from type QString to type QwtText
"libToolboxQuaternion.dylib is a Toolbox plugin"
Number of plugins loaded: 13

Loading compatible plugins from directory: "/Users/Someuser/Library/Application Support/PlotJuggler"
Number of plugins loaded: 0

Could not create pixmap from :/style_light/transparent.png
Could not create pixmap from :/style_light/transparent.png
Stack trace (most recent call last):
#31 Object "HIServices", at 0x7fff25ab1c60, in DoDropMessage + 41
#30 Object "HIServices", at 0x7fff25ab1e6a, in DoMultipartDropMessage + 104
#29 Object "HIServices", at 0x7fff25ab7bba, in CallReceiveMessageCollectionWithMessage + 102
#28 Object "AppKit", at 0x7fff23365b23, in NSCoreDragReceiveMessageProc + 475
#27 Object "libqcocoa.dylib", at 0x10b925ca4, in qt_plugin_instance + 126635
#26 Object "QtGui", at 0x107fd449e, in QWindowSystemInterface::handleDrop(QWindow*, QMimeData const*, QPoint const&, QFlagsQt::DropAction, QFlagsQt::MouseButton, QFlagsQt::KeyboardModifier) + 66
#25 Object "QtGui", at 0x107fe66f7, in QGuiApplicationPrivate::processDrop(QWindow*, QMimeData const*, QPoint const&, QFlagsQt::DropAction, QFlagsQt::MouseButton, QFlagsQt::KeyboardModifier) + 131
#24 Object "QtCore", at 0x1084c040d, in QCoreApplication::notifyInternal2(QObject*, QEvent*) + 137
#23 Object "QtWidgets", at 0x107b5f7f1, in QApplication::notify(QObject*, QEvent*) + 487
#22 Object "QtWidgets", at 0x107b5e995, in QApplicationPrivate::notify_helper(QObject*, QEvent*) + 211
#21 Object "QtWidgets", at 0x107b980b2, in QDesktopWidget::qt_metacall(QMetaObject::Call, int, void**) + 5704
#20 Object "QtWidgets", at 0x107b99a22, in QDesktopWidget::qt_metacall(QMetaObject::Call, int, void**) + 12216
#19 Object "QtCore", at 0x1084c040d, in QCoreApplication::notifyInternal2(QObject*, QEvent*) + 137
#18 Object "QtWidgets", at 0x107b60191, in QApplication::notify(QObject*, QEvent*) + 2951
#17 Object "QtWidgets", at 0x107b5e995, in QApplicationPrivate::notify_helper(QObject*, QEvent*) + 211
#16 Object "plotjuggler", at 0x10630f03a, in QwtPlot::event(QEvent*) + 34
#15 Object "QtWidgets", at 0x107bf8af6, in QFrame::event(QEvent*) + 42
#14 Object "QtWidgets", at 0x107b86212, in QWidget::event(QEvent*) + 2246
#13 Object "plotjuggler", at 0x1062931c2, in PJ::PlotWidgetBase::QwtPlotPimpl::dropEvent(QDropEvent*) + 40
#12 Object "plotjuggler", at 0x106297792, in std::function<void (QEvent*)>::operator()(QEvent*) const + 72
#11 Object "plotjuggler", at 0x106298251, in std::_Function_handler<void (QEvent*), PJ::PlotWidgetBase::PlotWidgetBase(QWidget*)::{lambda(QEvent*)#2}>::_M_invoke(std::_Any_data const&, QEvent*&&) + 54
#10 Object "plotjuggler", at 0x106298c90, in std::enable_if<is_invocable_r_v<void, PJ::PlotWidgetBase::PlotWidgetBase(QWidget*)::{lambda(QEvent*)#2}&, QEvent*>, void>::type std::__invoke_r<void, PJ::PlotWidgetBase::PlotWidgetBase(QWidget*)::{lambda(QEvent*)#2}&, QEvent*>(PJ::PlotWidgetBase::PlotWidgetBase(QWidget*)::{lambda(QEvent*)#2}&, QEvent*&&) + 54
#9 Object "plotjuggler", at 0x106299575, in void std::__invoke_impl<void, PJ::PlotWidgetBase::PlotWidgetBase(QWidget*)::{lambda(QEvent*)#2}&, QEvent*>(std::__invoke_other, PJ::PlotWidgetBase::PlotWidgetBase(QWidget*)::{lambda(QEvent*)#2}&, QEvent*&&) + 57
#8 Object "plotjuggler", at 0x106293b51, in PJ::PlotWidgetBase::PlotWidgetBase(QWidget*)::{lambda(QEvent*)#2}::operator()(QEvent*) const + 51
#7 Object "libstdc++.6.dylib", at 0x108772710, in __dynamic_cast + 175
#6 Object "libc++abi.dylib", at 0x7fff206df557, in __cxxabiv1::__si_class_type_info::has_unambiguous_public_base(__cxxabiv1::__dynamic_cast_info*, void*, int) const + 5
#5 Object "libsystem_platform.dylib", at 0x7fff20760d7c, in _sigtramp + 28
#4 Object "plotjuggler", at 0x1062026cb, in backward::SignalHandling::sig_handler(int, __siginfo*, void*) + 39
#3 Object "plotjuggler", at 0x106202609, in backward::SignalHandling::handleSignal(int, __siginfo*, void*) + 112
#2 Object "plotjuggler", at 0x10620070d, in backward::StackTraceImplbackward::system_tag::darwin_tag::load_from(void*, unsigned long) + 43
#1 Object "plotjuggler", at 0x1062006a6, in backward::StackTraceImplbackward::system_tag::darwin_tag::load_here(unsigned long) + 102
#0 Object "plotjuggler", at 0x10620299e, in unsigned long backward::details::unwind<backward::StackTraceImplbackward::system_tag::darwin_tag::callback>(backward::StackTraceImplbackward::system_tag::darwin_tag::callback, unsigned long) + 38
[1] 7002 segmentation fault plotjuggler