No guarantee that the following will resolve the issue, but try these steps . . .
In a Brave Browser New Window, go to:
brave://settings/content/javascript
Scroll down that javascript settings page to Allowed to use javascript
Click the Add button
Enter [*.]google.com as the site . . . but do not Enable the following:
- Current Private session only
Click the Add button
Repeat for:
[*.]firebaseapp.com[*.]firebasedatabase.app[*.]firebaseio.com[*.]gmail.com[*.]googleapis.com[*.]googlevideo.com[*.]googleusercontent.com[*.]gstatic.com[*.]youtube.com