There is an issue with Krypton and DVD menus. The issue is present only with static DVD menus and only when Advanced deinterlacing is enabled (auto).
The issue is present since Milhouse build #0722 and LibreELEC v7.90.003 ALPHA (no such issue in Milhouse build #0721 and LE alpha 2).
The issue can be reproduced with this sample: https://www.dropbox.com/s/iyoflzs467sp3h…S.rar?dl=1