[Plugin: WordPress MU Domain Mapping] Domain points to wrong blog

Hej,

I have multisite running, with domain mapping works fine.

One user did the following:

– Add Domain A to site x
– Try to add domain A to site y – failed.
– Remove domain A from site x.
– Add Domain A to site y.

Now, on the domains table everything looks fine.
But:
Domain A is pointing to site x. ??

Where do I look for the problem???

Thanks,

https://www.ads-software.com/extend/plugins/wordpress-mu-domain-mapping/