Hello !
Interesting - so I guess the behavior I've been experiencing isn't related at all to the topic of this thread then ? (hard to tell for sure I suppose).

Anyways - if that can be of any help I'd be more than happy to dive deeper into this glitch repro it. This issue has never been a huge blocker for me, but it might become a bit more annoying as I might need to use this Macbook install a bit more in the future (to edit designs on the fly near a laser CNC, away from my main workstation). I could aslo perhaps try to compare V4 and V5beta on this macbook if that is of any interest.