Hmm. Odd. Are you a full user on that windows pc? Seems like write access or something fishy. If you don't have anything to backup because it hasn't been saving. You could try to do a full reinstall to see if that helps with your issue.
You can go more advanced and use Revo uninstaller on Studio One, but only do that at the last thing. Careful with revo uninstaller as well. It can remove just about anything. People use 3rd part uninstallers, because it removes leftover junk that most programs leave, incase they reinstall.
If you do go the revo way, watch some videos on YouTube first. It just and will remove whatever you tell it. I use it all the time and mostly to remove spam from Microsoft like the Xbox services from Windows 10.
The only other thing is you want to make sure you're a full admin on that windows account. It really seems like write access.
