Hi - here's two projects with identical media using a 4 way multicam split.

First look at CC 2018 photo - note everything looks normal and the multicam behaves normally. Doesn't crash, cuts as expected and work when not playing as expected.

Now look at the file labelled late 2019 and 2020 and not first of all the screen glitch with the multicam being overlaid over the existing video track. It also only works while playing and as soon as you stop you have to exit multicam and re-enter to get it to work again.

I've compared settings and both projects are as near to identical as they can be given there are a few additional settings in 2020 - but nothing checked.

All the important ones like CUDA acceleration etc are the same (ie ON). media cache. memory, playback settings all identical. I've updated video drivers to both the latest and those recommended by Adobe - nothing works. well it works in CC2018 but not in 2020.

So lets call this what it is - a bug. Not an idea - an actual bug in the software.

i do a lot of multicam editing and this one is a showstopper from me.