Same here. My balance (21 BAT) is shown on brave://rewards-internals/ only.
When is (or was?) the sunset for the vBAT?
the article referenced here (Important Changes to Brave Rewards | Thread) stated that users would get several warnings/reminders about transfering the balance to a verified custodian, but I haven’t got that yet…
I feel kinda deflated now 
I don’t know if I find it worth the effort to continue with the BAT-project. There are hardly any creator I want to support that will accept BAT anyway…
Edit:
I tried restarting the browser, and now it shows up in the widget like before, and on brave://rewards