HDMI CEC stopped working on Raspberry Pi 4

Hi, in the past 1-2 months HDMI CEC has stopped working on Libreelec on my Raspberry Pi 4. With the recent release of 11.0.5 I've done a clean install but the problem has persisted.

I'll add the following information:
- Clean install of LE 11.0.5 with no addons or media shares
- TV is a Samsung UA43MU6100 with a black Samsung One Remote
- Disabled HDMI CEC from the Xbox Series X and then disconnected the Xbox altogether, with no change
- Did a hard reboot of the TV, no change
- Disconnected and powered off the Pi4 and the TV for 20 minutes, no change

I've uploaded a full debug log: https://paste.libreelec.tv/stunning-shark.log

Below is output from the command line CEC utilities.

Can anyone give me any suggestions to get it working again?

# cec-client -l
libCEC version: 4.0.7,  compiled on 2024-01-11 10:20:10 by docker@77ee6b5647e6 on Linux 6.5.11-7-pve (x86_64), features: P8_USB, DRM, P8_detect, Linux
Found devices: 1

device:              1
com port:            Linux
vendor id:           0000
product id:          0000
firmware version:    0
type:                Linux

# cec-ctl -l
Driver Info:
	Driver Name                : vc4_hdmi
	Adapter Name               : vc4-hdmi-0
	Capabilities               : 0x0000010e
		Logical Addresses
		Transmit
		Passthrough
		Connector Info
	Driver version             : 6.1.71
	Available Logical Addresses: 1
	DRM Connector Info         : card 0, connector 32
	Physical Address           : 2.0.0.0
	Logical Address Mask       : 0x0000
	CEC Version                : 1.4
	Vendor ID                  : 0x001582 (Pulse-Eight)
	OSD Name                   : ''
	Logical Addresses          : 1 (Allow Fallback to Unregistered)

	  Logical Address          : Not Allocated
	    Primary Device Type    : Record
	    Logical Address Type   : Record
	    All Device Types       : Record
	    RC TV Profile          : None
	    Device Features        :
		None

15

False alarm

I forgot I had one other PC still attached by HDMI to the TV. After disconnecting that, the Libreelec on the Pi4 is again connecting to HDMI CEC. The other PC must have been taking the connection as a priority.