Different balance shown in Brave vs Uphold

Briefly describe your issue:

Different balances are showing depending on whether I view my account balance through brave browser’s rewards icon or through my Uphold account.

Which one is correct and why?
Why are they not the same?
What can I do to make them display the same balance?

What Operating System and Brave version are you using (Menu --> About Brave)?
Win10 Pro, latest Brave

Is your browser wallet currently verified? (yes/no)

What date did you verify your wallet?
Feb 2020

Have you been able to successfully receive payments in the past?
yes

Are you using a VPN? (yes/no)
no

Are you in a supported region (see here for list of supported regions)?
yes

Does your device pass the SafteyNet check (Android only)?
n/a

Have you manually turned off Auto-contribute on all of your devices linked to Uphold??
yes