Hey @BitHappy, thanks for writing in! Pinging the crypto wallet team to take a look at this for you.
UPDATE: Just heard back. This is a known bug. Try exiting out of ALL Brave processes (use Task Manager or Activity Monitor, etc. to shut down ALL Brave processes) and try restarting the app. Make sure you enter all of your credentials correctly the first time. This might work for ya, but a real fix is on the way!