Dear Maintainer, I created a new krita file with a simple black line and saved it. I closed krita and launched it again to reopen the same file. Krita answered : Could not open [/the/absolute/path-of-the-file-on-my-pc.kra]. Krita does not support this file format. I also can’t open any other krita files created with this version or previous versions of krita. I deleted the ~/.local/share/krita folder and try all my tests, without any sucess. So I downloaded the flatpak version (https://flathub.org/en/apps/org.kde.krita, same 5.3.4.1 version !) and then this version of krita can open my files without any problem. Best, Jean-Philippe