I have a small project (351 MB) of a text driven game. The FSM I've made as part of an overarching story manager work just as they should in play mode and build. However attempting to progress further on the FSM by editing even small things like state names and string fields results in unbearable input lag of 3-10 seconds making continued progress near impossible. Notably other FSMS are not affected.
A few people have mentioned somewhat similar problems and I've attempted disabling real time error checking, collapsing the FSM components, updating to the Unity 2019.4.1 and restarting Unity both before and after the update with no results.
By isolating pieces of the FSM I've seemingly isolated the problem to a set text property on a TextMeshProUGUI element action. Weirdly I was doing this previously with no issues until recently. Is there some reasoning for why this would happen and, even better, some way to fix it?