Which OS are you using? And are all settings resetting or just some?
I'm running Windows 10.
After some more testing, It's only the language and resolution that keep defaulting to spanish (I live in spain so it's not random but I'd rather play in english) and the native resolution of my screen instead of what I pick for it.
In spanish the magic altar progress doesn't show up properly when loading a game either.
It shows the text but not the numerical value for the progress (2/5, 3/5 etc.)