My Movie Studio level premium becomes unstable after I use the help facility. I am not absolutely certain but I think has only occurred since upgrading to Windows 10.
The dis[lay greys over and I am asked do I want to shut the application or allow it to continue so that can sort things out. This takes some time and although it does sometime restart it soon fails again.
Have to save a back up every 5 minutes or less..
I would like to cure this of course because I prefer to sort out my own problems if I can. In the mean time I am be asking for advice on the forum more I normally would.