DESCRIPTION STEPS TO REPRODUCE 1. Open Settings dialog 2. Go to the General section 3. Go to File Handling tab 4. With backups enable, attempt to edit the "Backup File Suffix" field OBSERVED RESULT The field either remains unchanged or only accepts one character. EXPECTED RESULT The field should be editable. SOFTWARE/OS VERSIONS Observed in both Krita 5.3.2.1 and 6.0.2.1, on both Windows 10 and Android. ADDITIONAL INFORMATION Based on personal observations, this issue might have been present for several versions now, as I've also observed it on a laptop running Fedora a couple of years ago. Given that I was able to edit this setting on my main work computer a long time ago, there is a possibility that the issue has been present in all 5.x releases.
Can confirm, this is caused by e13edec3dcd403e6e451978d3e4af999eb614b2e that incorrectly assigns the resource path validator to this field.
A possibly relevant merge request was started @ https://invent.kde.org/graphics/krita/-/merge_requests/2818
Git commit a7fc8aefbbb633b3fe2e19de44100943b13460a6 by Halla Rempt, on behalf of Carsten Hartenfels. Committed on 11/06/2026 at 08:40. Pushed by rempt into branch 'master'. Fix writable resource path validator By assigning it to the correct text field and returning Intermediate instead of Invalid so that the user can actually type something into this field at all. M +2 -2 libs/ui/dialogs/kis_dlg_preferences.cc https://invent.kde.org/graphics/krita/-/commit/a7fc8aefbbb633b3fe2e19de44100943b13460a6