Hmm I wouldn't have thought this would happen. When you load the apps into SM you have to pick what countries app store you are using. I have no had any reports from staff in my org of this happening
It could just be a coincidence that the app are updating, have you checked the event log of an affected device to make sure it was communicating with the dashboard before they left the original country?
If you found this post helpful, please give it Kudos. If my answer solves your problem, please click Accept as Solution so others can benefit from it.