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We recommend that you give the steps for a clean reinstall here a go across all your devices. This tends to solve issues like the ones you're experiencing, as they are most likely caused by corrupted installation files.
If you use an SD card on your smartphone, you can remove it before the reinstall and then try again running the app without the SD card. This would help us determine if that's also a factor when syncing your files.
Keep us posted! We'll be happy to lend a hand if you need more help.
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