Hi mylifer ,
Thank you for reporting this issue to us. We need some more information to investigate deeper into the issue.
Could you please share your system specifications (including monitor information) as well as the Bridge version which you are using?
It would help further if you can attach a sample image for which you are facing this distortion.
Adobe bridge is doing the same thing and it happened when I upgraded my computer to macOS Catalin.
Same here with a clean install of Catalina on a 2016 15" MacBook Pro. Gave me a scare for a moment as I thought it was yet another Apple GPU issue!
The same happens to me with a MacBook Pro (2017) in Bridge after updating the OSX to Catalina
Same problem with Bridge on a MacBook Pro 2018.
After 2 days suffering the same problem of bad preview in Bridge, today it has been corrected spontaneously without having changed anything of the configuration
Here too the problem after update to Catalina
Worked well for a while and then suddenly the problem and now still does not work I hope a solution soon ...
(MacBook Pro 2016)
Same issue here on my Macbook Pro 2019 since upgrading to Catalina. Everything is up to date on the Adobe end.
If you choose software rendering the problem will be solved. However, with software rendering switching preview to another will be much slower.
After a clean install of macOS Catalina, the problem is still ongoing.
Today Mac osx update... Solved for me !
CATALINA 10.15 UPDATE DID NOT HELP ME (MBP 15" 2018). After the update, I am still with the same distortion in Bridge.
The issue isn't completely gone, it is randomly still showing bars throught the day.