Sonos Arc status light not showing when increasing volume on Sky Q remote

For several weeks now the status light on my arc does not show whenever I increase or decrease the volume on my sky q box via my sky q remote. It’s really annoying as it doesn’t seem like the volume is increasing (as it goes up in increments of 2) so I want the visual there that it is actually going up. 

It also doesn’t show when I go up to the arc itself and physically press the touch buttons on top and I’ve no idea why?
 

I see the volume physically increase when on the app when I press increase. I’ve reset the remote and tried to pair again but no joy. I’ve also turned the status light function off/on via the app. It seems to be a bigger issue than that though, as it doesn’t show when I physically press the top of the arc like I’ve said. 

My TV is an LG 77 inch G2 if that is relevant. 

For reference, I have a Sonos Ray in the bedroom and that still works correctly, showing the status light when I increase/decrease on my sky q mini box. 
 

Any idea what it could be? 
 

Thanks in advance!