Bluetooth keyboard connects, but keyboard input does not register

I got this keyboard , which supports up to 3 bluetooth connections and a dongle based connection to switch between. When using the dongle, it works fine, it gets picked up and keyboard events get registered, but when using the bluetooth connection, I can find two versions TMKB T63 3.0 and TMKB T63 5.0. I am using blueman, TMKB T63 5.0 fails to connect, but I can connect with TMKB T63 3.0. When connected btmon receives transmissions when I hit the keys, but all the 10 or so different TMKB devices in evtest No device specified, trying to scan all of /dev/input/event* Available devices: /dev/inpu

Question by Abram Saulli on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.