Since mid-May, bluetooth pairing seems a bit broken on the AM6b+. It seems that it pairs mostly successfully, but upon reboot the remote is forgotten. I have tried this with the Homatics BR21, Zidoo 12, and the UR-01 remotes with the same result.
Mods, I tried posting this in the Help & Support, but was not allowed to post there.
I ran into bluetooth issues when the main install was on emmc and booted from usb. After connecting a bluetooth device on the usb install, the bluetooth on emmc was completely screwed.
You gave me an idea because my error started when I booted into the eemc from the USB. So I did a hard reset and the error disappeared. For some reason, it seems that this caused an error. Even when I do a restore from backup the error reappears.