In this thread was reported issue https://redhat-internal.slack.com/archives/C08J3PK9C2F/p1763740869798279?thread_ts=1762527086.211919&cid=C08J3PK9C2F 

that removal relations in role removals in the Custom Default Group isn't working .

This needs to be validated, if relations of removal relation is working.

Maybe ask them to add those roles back, and then remove again(check if this will work or not)
Or think of another way how we handle these orphaned relationships (maybe an internal tool?)