Created attachment 102513 [details] (Video example) 1) Create a vector ellipse (Tools > Ellipse Tool) 2) Flatten the image (Layer > Flatten image) 3) Undo (Ctrl + Z) 4) Try to edit the outline color of the vector ellipse krita-3.0.93 crashes with segmentation fault on (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
Created attachment 102514 [details] (GDB Report attachment)
This looks like it's been fixed in the current 3.1 and impex branches, because I cnanot reproduce it anymore.