I have this issue also, and can confirm it has been happening for at least 2 months for me! It seems to randomly let some through and not others.

It's a royal pain now, and we should certainly be offered an explanation or regular updates at the minimum! (weekly, if not more frequently!) as this is costing me money when my invoices don't get paid!

Can confirm I have also spoke to support and they had no knowledge of this issue. Why is it being pushed under the carpet? I guess there aren't enough of us with the issue to count...