Moving a computer between groups in Enterprise Console

Hello fellow Sophos Users,

my problem is, that old windows7 is not supported anymore. Therefore i made a new group for old pc's who will have no sophos in the future and also no internet access.

Now I want to move those windows7 pc's in the new group but failing to do so.

I already tried: https://support.sophos.com/support/s/article/KB-000034194?language=en_US , but nothing happens.

There are no errors or other warnings leading to a deeper understanding why this is not working.

Could it be the problem, sophos already not updating correctly on windows7 anymore thus no changing of groups possible?

Thank you for any ideas on this topic.

Best Regards

Achim