Same problem here. I created my account two days ago and today I wanted to submit my proposal, but the problem with address appeared. My location info is fully filled and I tried to resubmit multiple times with no success.
This is not nice from the Upwork support and it made me really pissed off (multiple hours while creating proposal are wasted now). Please do your best to fix this issue.
I cant send Proposals due to updation error of address
I have aupdated my address several times but still getting the same error.
Need Assistance as soon as possible.