This happened right after speaking to the slime after the buff slime in light Forrest. It was running smoothly before this so I hadn't thought to save at all :(
If it helps: I play on Android using JoiPlay
I'm not sure if it's something I can fix on my own as this is the first time using JoiPlay, but just thought to post ahead of time instead of fucking around in the settings
Update: Restarted, remembered to save before interacting, this time I chose to interact with the slime on the right and the same thing happened