Hi!
I am using Gimp 2.8.18 64Bit with GMIC 1.7.5 64 Bit (OS Win7) and I think found a strange bug in GMIC, Gimp.
Steps to reproduce:
1.) Create a new picture in gimp with size 200x100
2.) Use the rectangle tool (Shortcut R) to select a small piece of the picture
3.) Call Filters->GMIC, switch to a filter and GMIC will crash
4.) If is does not crash switch preview option on
It will only crash with an active selection. The picture size is also important. If I create a picture of size 640x480 GMIC will not crash.
Strange…