The circle abstraction shows up fine in preview mode but, when applied, krita crashes. Krita was unable to restart so I started manually. My UI preferences were reset to different values than when the application closed. For example, I went from a default to a dark theme. The various dockers were changed, particularly the color selector. Reproducible: Sometimes Steps to Reproduce: 1. Can only reproduce on file it blew away on 2. If you go with a single layer doodle on top of a new document, you get error on Apply, not in preview 3. Actual Results: Dump or error message Expected Results: filter applied will attach error message box, dump went wherever your error reporter sent it.
Created attachment 90958 [details] message box with error message
Created attachment 91075 [details] Gmic GIMP 1.6.0.3 without updates
Created attachment 91076 [details] Filter output in Krita beta 3 This filter works for me on git revision 17f4d0913b. Can you update and test again? As workaround try to hit "Update" in GMIC dialog, maybe the filter definitions updates will fix the problem. Also this problem is present in G'MIC for GIMP (upstream)