K2 keeps disconnecting x-controller

Hello! sorry to keep bothering you guys!

PS4 console using Xbox elite v.1 controller

K2 was working quite well, there were some issues with bluetooth connection upon startup, but once K2 is connected, there has never been a disconnection - it worked beautifully.

however, recently, the past few days, the controller kept connecting/disconnecting.

Firmware was updated today, and still disconnecting.

The blue light was on the whole time like usual.

Thanks so much,

Alice