This seems to be a common issue. I’ve been using Brave for a few months now and have had no problems in the past. On the 13th I manually collected my February reward (which is a bit odd because deposits for previous months happened automatically), and it has shown up in my Rewards Summary on brave://rewards. However, whenever I try to withdraw it by clicking on “Withdraw Funds,” I am directed to Uphold which does not contain any BAT. Hoping you are able to fix this.