Simplot++ can't load Qt5 plugins (RHEL, CENTOS, UBUNTU) and core dumps.

[ponomarevsy]

No luck with this application so far, Qt5 crashes in RHEL 7 (also, in Singularity containers of CENTOS8 and UBUNTU23.04):

(SimPlot++) user@node:/apps/SimPlot++/Simplot_PlusPlus$ python3 main.py
main.py:2724: DeprecationWarning: sipPyTypeDict() is deprecated, the extension module should use sipPyTypeDictRef() instead
  class MplCanvas(FigureCanvasQTAgg):
main.py:2734: DeprecationWarning: sipPyTypeDict() is deprecated, the extension module should use sipPyTypeDictRef() instead
  class Stream(QtCore.QObject):
main.py:2742: DeprecationWarning: sipPyTypeDict() is deprecated, the extension module should use sipPyTypeDictRef() instead
  class Worker_recomb(QObject):
main.py:2790: DeprecationWarning: sipPyTypeDict() is deprecated, the extension module should use sipPyTypeDictRef() instead
  class Worker_simplot(QObject):
main.py:2948: DeprecationWarning: sipPyTypeDict() is deprecated, the extension module should use sipPyTypeDictRef() instead
  class Worker_bootscan(QObject):
main.py:3064: DeprecationWarning: sipPyTypeDict() is deprecated, the extension module should use sipPyTypeDictRef() instead
  class MyWindow(QMainWindow):
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.

Aborted (core dumped)

Also, Simplot++ crashes on Mac in windows emulator with this error:

The code execution cannot proceed because VCRUNTIME140.dll was not found. Reinstalling the program may fix this problem. 

Any assistance will be greatly appreciated. Thanks!