Hey @Rael
You’ve got good news!
I happened to get it to reproduce on my device and found a workaround 
Yesterday, I installed Inkdrop on my e-ink tablet and the issue happened.
It looks like a race condition issue since the menu is displayed correctly when disabling the animations.
So, I implemented a workaround that avoids the issue.
Can you please try build 82 on the open testing channel here?
Hope it works on your device.