This sounds absurd I know, but right clicking the doors while in this perspective makes the sound play but the door doesnt open. It isn't some sort of rendering glitch, they are actually still closed. Going into normal first person or third person and right clicking a door works just fine, however.

Please provide the resulting crash log from pressing F3 + C for 10 seconds while ingame.

Got a similar issue, however I got a lot of other mods running so idk how helpful the log will be :p.
crash-2021-06-04_11.13.25-client.txt

Yeah this issue is likely caused by another mod installed alongside shoulder surfing. The easiest method would be to split the list in half and figure out in which half the crash occurs. If you found the half, repeat the method again until you know which mod causes the issue. This would greatly speedup a potential fix.

Found it, conflict seems to be with the better third person mod: https://www.curseforge.com/minecraft/mc-mods/better-third-person

Nice! I will look into it in the next few days and see what i can do.

many thanks :D!

Turns out this is a known issue: https://www.curseforge.com/minecraft/mc-mods/better-third-person/issues/11

So i did some further testing and for it turned out to be an issue of Better Thrid Person itself. If you only install that mod doors will not open properly. It has nothing to do with shoulder surfing.