[ilacad.erik]

Thanks for the response, Mike. Now just to be sure, before I connect to the companion, I do the back up first (lesson learned!). I will let you know if I encounter it again, because I also don't know what triggered it the first time.

For what it's worth, I just finished creating an album when this happened.

Other information that might be helpful:
I am using the following:
MobileSheetsPro on a Samsung Galaxy Note Pro 12.2 running on Lollipop.
MobileSheetsPro Companion on PC (updated version)