Update successful but IP-Address not updated

since a few hours a have a problem with updating my dynv6 domain.
I have a OpenWRT router here which is working fine now for a long time.

Here comes the log from the router side: https://pastebin.com/aJ1Jfz4R

My account information still tells me the old address.

Is it just a thing of patience or is here something wrong?

Thanks in advance!