I've been using a iPad 2 successfully sending MIDI presets to my GR-55, I just got an Android Galaxy Tab A with android 6.0.1 using an OTG adapter to connect the MIDI interface, when sending the MIDI presets the first 2 songs work ok but the 3rd and on the application crashes. I know I have to do some troubleshooting but was wondering if is a know problem.
To troubleshoot a crash, it's best to submit a help ticket so I can look at your device details:
https://helpdesk.arlomedia.com/arlomedia/add.html