LG NetCast TV can no longer change channel from the media player card

I have a 2014 LG TV, which uses the LG Netcast integration. This has been working fine for ages, but think since the Feb '26 release it has stopped working as usual.
In the media player card for the tv, I get the usual screen grab and volume control, which are both working fine. But when I try to change input, to another channel in the drop down list, selecting a channel to change to doesn’t work.
However automations that are setup to change to specific channels at certain times are still working ok.