MS4 custom measure length messed up

When adding one quarter note to an individual 4/4 measure in measure properties, it simply deletes the first quarter note of the next one. When pressing ctr+z one eight of that following measure completely disappears, creating a 3.5/4 measure. actually it's even more messy than this and it's different depending on if and what length of notes are in the measures. I added a screenshot of what it looks like for me now.

also I'll mention the minor but anoying issue that while adding dynamics to decrescendo's (and I asume crescendo's) works now, Any dynamics directly following after won't have any effect and instead it stays at the volume created by the decrescendo's.

The musesounds are amazing though and if the issues get solved and we get the ability to edit velocities for notes and dynamics I think I'll love Musescore 4.