Adobe XD randomly Crashes? Closes? When not in use.

I've been having difficulty troubleshooting what exactly is happening here as I haven't actually seen it happen.  I'll spend time working in XD for work, then have to switch tasks sometimes briefly and sometimes for a lengthy time, when I go to return to XD it won't be open anymore. Or, sometimes at the end of the day, I'll leave a file open so it's ready to go first thing the next morning. In the morning XD is not running. I can't tell what is going on, if it closes, or crashes, or what. I do know that this happens without the computer getting shut down or restarted. It has never happened as I've used the program, only while it sits idle. Sometimes it happens when sitting idle in the background (does not have focus) and other times while sitting idle in the foreground (it has focus). 

It also doesn't happen quickly where if I sat and watched for 5 minutes I could catch it. Sometimes it'll sit and be fine for hours, then it's gone, sometimes much less.

It's not that annoying when it happens overnight, but if I am working in the program, tab to another program and do something for half an hour to an hour, then tab back to find everything gone, that can be pretty annoying.

Any help in troubleshooting this would be appreciated.