Are you talking about these issues?
If so, the last update was 3 days ago suggesting there are still problems. I’d recommend taking another fintech card (Starling, Monese, Revolut or TransferWise) and a debit card from a high street bank – it looks like Monzo doesn’t have a handle on fixing these “problems” soon.
General advice – it’s always good to travel with a credit card which you can use to return to the UK in an emergency, where you can sort out stuff if you need to.