[1.3.3200] Swapping target and performer in ritual bugs out window

[glass zebra]

Swapping roles around in rituals can make the window bug out in a minor way. I am not 100% sure about the exact mechanic but found one save repro:
1. Have a colony with 3 people + no moral guide + scarification ritual.
2. Open scarification ritual from ritual spot
3. Swap target and spectator
4. Assign cutter to "Not participating"
5. Assign the not participating cutter back to being the cutter
6. Begin the ritual

The game will say the ritual starts but the window does not close. It will close when you press the button again. This is a minor bug but a rather weird one.
If this does not work for you, I will try to find a more exact repro. Example save: https://easyupload.io/bpry6d

Both DLCs, no mods used.

[Pheanox]

Thanks for the bug report.  I wasn't able to reproduce this on my own saves, even following your steps.  However I have sent the Null Reference Exception that was generated on your save for the devs to take a look at!