Thraxia IS spawning on Spider Lair map, but not in the boss room

I saw that the boss being missing is a known issue, but I think due to a quirk of how the map was generated I was able to head back outside of the arena and look for her.

As it turns out, she spawns nearby:



Here you can see the arena (to the northeast of the centre), and to the southeast you can see her attempting to spawn but not really fully spawning (she just goes through what I'm assuming to be her spawning animation, sort of bouncing and flailing her legs).

If it helps with troubleshooting, this is incidentally RIGHT next to a ritual spawn (it is just, just, just barely out of frame below Thraxia).