Strange. A few things come to mind:
1. Maybe some permission issues. Can you try to uninstall and re-install, choosing the default storage option. The files will be in the internal storage under NBEMS.files.
2. The submit buttons on the HTML form only respond to a single short press. You know it is triggered as the form is closed.
3. There is version 1.3.7 now on Sourceforge under the Fldigi project, in the AndFlmsg folder. It may fix the old moto device shutting down (fixed some memory leaks and data mismatches).
Hope that helps.
73, John (VK2ETA)