Fatal crash on quit - after GMIC installed [flatpak]

[Grobe]

OS: Linux Mint 21.3 Cinnamon (but same problem with previous Linux Mint installation version 20.3)

Gimp version 2.10.36
Build: org.gimp.GIMP.flatpak.stable rev 0 for linux


GMIC installed by flatpak command: "flatpak install flathub org.gimp.GIMP.Plugin.GMic"
And I then choose alternative 1 (on first attempt I installed alternative 2, but that did not show in Gimp meny, so I uninstalled that).

Window text / header for GMIC main window:
G'MIC-Qt for GIMP 2.10 - Linux 64 bits - 3.3.5


PROBLEM: Under certain circumstances it seems that GMIC causes Gimp to crash upon quitting the program.


Steps to reproduce the crash

• Open Gimp
  
• Open some jpg image
  
• Open GMIC (I use Fourier Transform plugin)
  
• Apply plugin
  
• Close Gimp : this seems to immediately cause a crash.
  

Seems that if I close the open file in Gimp first, and then exit Gimp - the crash is prevented.


Anyone seen this before, and if yes:
- Does a bug repport exist. If no, to whom to repport this (to Gimp or plugin developer) ?
- Any setting in Gimp or GMIC that can be tweaked to twart further crashes ?


TIA