Wraith Tagged By Arc Star Void Walks It Off

She is only "invulnerable" because she enters another plane of existence not because she becomes impervious to damage and she does this with all items attached to her such as her clothes and weapons.

It literally says, "Reposition quickly through the safety of the 'void' space, AVOIDING all damage" which is different than becoming invulnerable. It says nothing of invulnerability. It simply means that she avoids damage on this plane of existence because she is in a different plane of existence temporarily for which she travels through. It would be safe to assume that logically if an arc star is attached to her when dhe voids out, it will still be attached to her and damage her accordingly even if she were in the void or at the very least still be attached to her when she comes back. 

You have a strong assumption of invulnerability.