Hi @swoodworth,
The issue might be caused by the browser cache, would you try to sign-in using a superuser account in an incognito/private mode? If it works using incognito mode then please try to clear your browser cache using the Browser Cache Cleaner app and maybe use the Empty Cache and Hard Reload:
If the above doesn’t work please share your Catalina.out log (without including any sensitive info). Thank you!