Blocked/Impassable Trial of Sekhemas room

My character "Blindsight" is in a puzzle/switch room in Trial of Sekhemas on the fourth/final "floor" that has no solution. There are 3 accessible switches that open doors in a cycle, and the other two doors are both inaccessible when in the room. Perhaps they're accessible when I'm locked in one of the other two rooms in the cycle?

To look up the instance ID in your logs, the instance was opened by the character Blindsight about 10 hours ago.

Attempted fixes/hacks to bypass the issue: I stopped and mapped for half an hour to see if it would reset last evening, then I logged out overnight to see if the instance would timeout to reset, but the broken room persists.

This evening, I am going to try to attempt joining in split-screen with another character to see if either of the inaccessible doors open when I'm locked in the other two thirds of the accessible trial rooms. If that does not work, then I will be choosing to fail the Trial of Sekhemas. Please let me know if there's any more information you need me to collect about my instance before I complete/reset it.