Hi Dylan,
Thank you so much for buying QT you are awesome!
Sorry that it didn't run, that is a real problem. The mac build should be 64 bit, was there any error message/ information when you tried to run it?
Unfortunately too I'm without my computer until Monday, but hopefully we can fix it without a new export.
I'm going to ask on Twitter if if anyone else has tried to run on Catalina.
Very sorry it didn't run, will fix this all asap.
- Happy Snake x