""I am having the same problems. It seems like Samsung phones are struggling with the new upload process.
I would suggest the following:
Upload all of the photos on your phone that you took with app 3.54 (otherwise they will be deleted).
Go to Google Play Store > Settings > Turn off Auto-update apps.
Uninstall the Mapillary app from your phone
Download and install the old Mapillary app from here: http://android-releases.mapillary.io/Mapillary_Android_3.27.apk1
You will have to sign back in but then you can take photos and upload without processing!
You might want to backup your photos onto a computer before doing any of this""
Boy! I thank you for that walk through, give your self a badge.
I now have one phone/camera set up that way.
We have a soaking rain today but I still hope to try this oit.