AZ Alkmaar U18s havs wrong logo. It shows up Ipswich FC logo behind player face and at the top.

Hi Martin, is it possible that you have a custom database (a Dutch pyramid) and are not using fm24?
I think that's the most likely explanation.
I too, in a French pyramid on Fm23, have some clubs with ID numbers blocked in the editor (not random) which with the succession of megapacks now have a logo of different teams.

on fm23 I correctly display the AZ logo in the U18 team, try to check if in your save the ID numbers coincide with those present in the editor.

From what I see in your images you should have the logo of an Australian club, which very likely has a new ID, which is the same as that of the AZ U18 team in your save.

I am using FM 24 database

But ID is the same for Alkmaar and Ipswich

Then I believe you have a file (editor data) that changes the ID of the AZ U18 team with an ID that was free until before the release of the Fm24 editor, but then assigned to another team. If you want to be sure, do a test, load a new save without any custom db and check the AZ U18 logo again