The app acts like it is going to start, but it never gets past saying "Loading." It has done this since I upgraded to MacOS Catilina. I just udated to the 2020 version, but it still won't start.
Have you tried trashing your preferences?
Windows: C:\Users\[USERNAME]\AppData\Roaming\Adobe\Character Animator\3.0
macOS: ~/Application Data/Adobe/Character Animator/3.0
Yeah, I tried that, but it is still hanging up.
The camera and microphone were already allowed, and the folders are all read write.
Sorry to hear both of those suggestions didn't work. Have you tried the simple uninstall (while making sure to remove the prefs) and reinstall?
Yeah, that was the first thing I did.
This does sound like it could be a permissions issue. You said your folders are read/write, but does that include this one? https://blogs.adobe.com/creativecloud/permissions-mac-os-start-adobe-applications/
Also, as a good test to see if this is an issue confined to your local account is to temporarily create a new user account. If CH launches with no issue there then it's an account issue, not an app issue.