Were you able to confirm that this reboot issue it's only happening with this 2 devices? With IOS the issue is not happening?
Also, how big is this App, for example, if you try to create a new App that will only contain the Photo component, does it behaves the same with the affected devices?
If that's the case, I would highly recommend to submit a support ticket to get our team looking into this in details as there could be multiple factors affecting the performance of the App. For that I would recommend you to enter the SessionId for both mobile devices and if possible a short vide with the repro of the issue.