So, this has come up before.
If you have a piece of kit you even question it's safety, probably should just remove it from kit. Just the slightest doubt while you are doing your job (one of the 5 most dangerous in the world) will be distracting you somewhere in your psyche. Generally, you do not use a HC for life support. Only as a tending pulley or for light duty mechanical advantage. DMM has told folks you do not use for life support like a bridge connection.
But seriously. Toss it and get a shiny new one if that is your go to for climbing system.
That bushing is shot or the shaft. It's done