[Zubersoft]

That one is going to be more difficult, as it's most likely related to the Microsoft Store requirement to use the .net native compiler. Their compiler is changing something related to Google's code that causes instability. I believe the FastSpring version works more reliably. If you want to switch to the FastSpring version, send the invoice from your purchase to mike@zubersoft.com and we can discuss that. I can only offer this for a single device though due to the way the FastSpring licensing works. Otherwise you'd need to wait until I can switch MobileSheets from being a UWP appilcation to a standard desktop application, which requires rewriting a huge amount of code, as I have to switch frameworks. The earliest I will be able to focus on this will be much later this year.

Mike