2020.3 High Sierra - Mac 5,1 - No Video playback

[jseelye02]

Anyone else having issues with their Mac 5,1 running High Sierra NOT playing back ANY QuickTime files after upgrading to 2020.3?

I've tried 4-5 codecs, they all import fine but won't show frames or playback (just a black screen).

Multiple restarts, updated codecs, etc...

I've been using the same machine with 2019.12 for a while with no issue, this all happened after the upgrade.

All the movie files I have open fine in QuickTime and MPEG Streamclip.

Anyone else?

I've downgraded to 2019.12, everything works fine right now with that, but I'd like to sort out 2020!