As reported elsewhere but I do not see a solution posted. My browser balance is not being automatically transferred to my verified Uphold account. It was working fine with monthly payments issued up to and including May. Since then nothing. I am on Ubuntu 20.04 and Brave [Version 1.8.96 Chromium: 81.0.4044.138 (Official Build) (64-bit)].
I upgraded Ubuntu from 18.04 in May so maybe this is the issue?
Note that your Brave version is very old. https://brave.com/latest/ Make sure you have a backup of your data and rewards Recovery Key. Take a screen shoot of your rewards internals, may not be a bad idea before updating.
You may loose things in the update process.
I am not sure what you are using for a version check but it is not correct. If you click on the link I provided, it shows what the current version is - Desktop V1.11.104. Use Ubuntu’s Software Updater to update to the correct version. Be mindful that it can update other things. And again, backup before you do.