I have a 4GB Rpi4 running version 9.2.3, but this problem also occured on the version 9.2.1
I have a Bluetooth keyboard Rii 8+.
On a clean install, the keyboard works great. Everything works. Even after several reboots. But after a few days/weeks, something happens and from that point on, the keyboard doesnt work.
When I try to delete or connecti via the menu (LibreElec -> Bluetooth), it reboots. It loads all found bluetooth devices and it identifies my keyboard as trusted (with yellow star). It also shows the mac-adress. BUt selecting any option (connect or delete) causes a reboot
When I do a clean install, everything works again.
Here is the crash log:
You can see something going wrong in the logfile on this line:
Update: I just found out that if I wait until all bluetooth devices have been discovered and I then try to delete/connect, it works.
Check this new logfile
It gives a few software errors and connection errors. but after a few tries, it connects:
But after another reboot it doesnt auto connect