Crashing with mannequins and/or spectator mode #1034

I've been getting crashes in my world where I have a couple of mannequins with custom models that are being constantly teleported to villagers to give the illusion of them walking around and doing stuff. The crashes are semi-frequent and tend to happen when I'm in spectator mode.
I can't tell if the crashes are being caused by spectator mode, the teleporting mannequins, or some kind of mix of the two, but they only really started happening a lot after I set up command blocks to teleport the mannequins around constantly.
crash-2026-10-24_17.16.46-client.txt