Can't claim character or find my guild in profile

I can’t seem to claim my character.
I’ve joined the guild with an auto join link. Using it again I get the message I’ve joined the guild. Although I can’t find any mentioning of my guild in my profile.
When trying to claim my character I get the message that this char is a member of a guild (which it is, and I (my profile) is too).
On the WOW-TBC forums (EU-EN) my char is active and it shows the correct guild.
I’m at a loss what else I could do to claim my character on warcraftlogs…