IF you are using Brave Browser for desktop/laptop computers:
Try: An on-demand update check of the Brave Browser installed components. Visit brave://components/ in Brave, go down the list and press all of the “Check for update” buttons.
When you visit a website and have some trouble, try:
Click the “tune” icon located immediately adjacent to the left end of the URL address field - example:
Check the pop-down menu.
Click on Reset permissions
Reload the webpage.
Click the “tune” icon again.
In the pop-down menu, verify that JavaScript is Enabled.
You might create a new Brave Browser user profile (Menu --> More tools --> Add profile) for testing. When creating this new Brave Browser user profile, try to keep it simple:
Do not import anything.
Do not add any extensions.
Do not allow/enable any Brave Browser “bells and whistles” such as Brave Rewards, Brave Talk, etc.
Suggest that after you create that new user profile, Exit / Quit everything and restart the computer … and then choose the new user profile for testing.