Bank accounts issue

I have recently encountered banking issues dealing with Eur P2P platforms involving bank transfer. Some transfers are recently flagged up by Revolut, for example, Mintos discontinued bank account in Germany.  Revolut raised concern about Mintos returning fund in GBP. Some platforms have changed bank accounts more than once this year.  Although all the transfers were completed successfully but it seems banks are concerned transferring and receiving fund from different countries.

What's your thought?