code randomly gets cut off on save

this started happening after the patch to fix the popup cmd on save. basically, sometimes when you save your entire code gets cut off in half. i can't reproduce this consistently, it happens out of pure randomness (about 3 times per day). so am not sure how to debug / test it.

but i figured i'd make a issue for the record incase anyone else experiences this.

happens on Windows WSL 10, 64-bit. latest sublime text 3.
edit: iirc, it happened more if the file was > 500 lines of code. it's been happening for the past several months, I just never really made an issue about it cause i just did ctrl+z and got my text back. however, i can't take it anymore