This seems to be a recently common problem, so this is kind of a plus-one. Uphold continues to show $0 balance and does not reflect what I show in my Brave Rewards. Hoping Brave support can respond to at least someone with an update. My details:
|Brave||1.16.76 Chromium: 86.0.4240.198 (Official Build) (64-bit)|
I will provide Wallet ID and a Rewards screen shot when requested.