This morning I was finally able to transfer two files between the Moto Gs Play (sending)/and Pure (receiving).  One of them was fairly big.  When I tried to send a third file, the Bluetooth option was gone.  I made sure it was actually on and went to connections.  The Pure showed as an option, but only briefly.  Then I went to system settings and cleared Bluetooth cache, but it still didn't work.  Should I clear data too, or is something else going on here?