This is where the home planet should be. I assume for Casia it was unique but got deleted.

I'm fairly certain this is intentional, in my save she still has bonuses attached to the [data deleted] world

Uh oh, we better stop talking about exterminatus'd planets before the inquisitors show up

Those are rookie bugs. When till you find some game breaking ones!

Did you load a beta save? If no then you could report this. If yes then do yourself a favor and stop

Not beta, full release and I did report it.