I posted a tutorial for the Line MAT recently and had quite a few people comment who were having this same issue on Mac.
This is what I got form people when I asked for specifics:
“2014 MBP with the most current version of TD (2020.20625) in the Catalina OS.”
“2015 MBP i7, 1536mb iris intel graphics card, TD build 2020.20625.” (they didn’t include OS)
“mid-2012 Mac, MacOS Catalina, TD build 2020.20625.”
I didn’t think to ask for model number, though I could follow up to get more info if it would be useful in troubleshooting this!