Hi, @all!
Could you please check if these packages fix the problem for you? They should fix both, cancelled frames rendering and superfluous updates of the transform masks in the hidden groups.
- Windows package: krita-5.0.0-fixed-frame-export-dk1.zip — Яндекс.Диск
- Linux package: krita-5.0.0-prealpha-1c9e8f5-x86_64.appimage — Яндекс.Диск