Jonathan H wrote:
not sure on your probblem sorry, but i can confirm i made a withdrawal to paypal moments before reading this and it has gone through fine.
So did mine, but the OP said that "all" his are not. That might indicate that he is in a country where MassPay (the method Upwork uses to send our money to PayPal accounts - which is why we do not pay a fee on the receiving side) is either not supported at all, or has to be specifically enabled on the OPs PayPal account.
Unless you ask PayPal first line support specifically about receiving MassPay payments, they will just answer that it's not on their side because they are used to dealing with "normal" PayPal payments which are different.
Some people in some countries can get MassPay enabled, others can not.