No inside knowledge but the “changed” account numbers sounds a lot like their banking partner (evolve) withdrew service with a few weeks notice, which would explain “temporarily” withdrawing cards too — as they’re linked to Evolve.
I’d normally guess a contract dispute (with Evolve leveraging their position, and Wise calling their bluff) but the mentions in this thread of overwhelmed verification and fraud, it seems plausible evolve withdrew from the relationship for cause.
A court order or something?
Withdrawing cards 'temporarilly' seems like one of the worst things a bank could do.
But they're giving notice, so it's not like a technical fault preventing the cards from working.