SUMMARY This bug occurs in a recent nightly build, but not in 5.3 beta 1, suggesting this is a regression caused by a recent patch. Note: this bug was found using two different Android phones, not a tablet. So try installing the APK on Android phone to reproduce the issue. STEPS TO REPRODUCE 1. Turn your phone to landscape mode. 2. Open a .kra file OBSERVED RESULT Half the screen turns black, with the UI squished into the other half of the screen. EXPECTED RESULT The whole screen has the UI, like in 5.3 beta 1. SOFTWARE/OS VERSIONS Krita 5.4 nightly Android 16 arm64 git 027815a6 (Feb. 14, 2026) ADDITIONAL INFORMATION This bug can be disappeared if you change the screen orientation once again after opening the first .kra, although it will return if you open another .kra file.