PSA: DO NOT CLOSE the Nameless Seer's store window

Hi,

I found the Nameless Seer in the woods with some fantastic uniques (playing Ruthless) and was very excited to spend my wisps on buying a probably best in slot wand... but I unfortunately clicked away from him and his inventory closed.

I went back and was surprised and slightly annoyed to find I could no longer click him. He was now entirely uninteractable.

I don't quite understand if this was intended or a bug? (Struggling to understand why it would be intended, the cost of spending all my wisps is clearly explained.)

Just wanted to make this report to give people a heads up in case they make the same mistake and feel the pain I am now feeling :(

Bug Report Reference: 4,007,794,065

fuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu.... xD

In the wiki it says you can't interact with him after the portal appears, so maybe you waited too long to return?