Problem
I have mistakenly renamed an OU via AD; I will revert that as soon as possible
Environment
UCS4.x with AD-Connector
Solution
You must wait until the whole OU tree is renamed. Then you can rename the OU again.
Depending on the count of Objects in the tree this may take a while.
Root Cause
If you change the name of an OU the path for all objets below will also change and all Object must synchronized via AD-connector.