I have the same problem. It’s very annoying. I feel like I can never trust the balance displayed and always have to pull to refresh to fix it.
Especially when making a few transfers between accounts it shows me outdated balance information.
For example, I make an iDEAL payment from account A. When I then want to make another payment from account A the balance for that account often shows the old balance from before the iDEAL payment.
Similar things happen all the time.