Quick views resetting on its own

[Killerd99]

I starting messing around with using snap views for checking six/checking gauges, etc. Setting desired view and saving with f10. Everything works like I want for awhile but then randomly every snap view defaults to the same centered and zoomed view. Happens in several different aircraft from a Mustang to an Albatross. Can't seem to find this issue in forums. Any ideas why it happens and how to fix it?