Can't delete inactive "friends" after gold squish

So apparently, after "inactive chars cleanup & gold squish" i have some characters in my friend list, that are named after a string of numbers and I can't remove them from my in-game friendlist. Active characters can be removed without any issue.

Tried disabling all addons, didn't help.

Any idea how to bypass it and "force" the removal of inactive characters?

The "inactive chars cleanup & gold squish" could be completely irrelevant, but was the first i thought of.

Someone reported it in the bug tracker and it should be fixed in the coming days.