Trial of Sekhema: cannot buy from vendor

I get an error message telling me I cannot buy from the vendor because the next area was opened after missclicking on the door, which located just next to the vendor. However this is after the third boss, where to enter the next area, and reveal the 4th part of the trial, you need to first go through a portal.

Either put the vendor somewhere else (not just next to the door), or make it we can still buy even after clicking the door (since we haven't yet taken the portal).

This just got me killed on my 4th ascendancy because I couldn't buy the boons that would've saved me. So dumb..

It definitely sucks when it makes you lose out, i just never open the door til im ready now but i did that to myself once.

I'll take whatever fix they can get in.