ive had the same happen to me multiple times. ive been working on some more complex weapon models and its really time consuming to fix. i know this isnt a fix for the problem but i wanted to show that no you are not the only one having this issue and i dont think your laptop is the problem as i have a pretty alright pc and it apparently does the exact same thing. the only guess id have is that when saving the coordinates get all weird but i dont know what could be the issue for that.