Media player "not compatible with pause"

Error: Entity media_player.emby_embycon does not support action media_player.media_pause

An automation that has been working fine for months is throwing this error now. And indeed if I try to set up a new Pause action, it won’t let me set that entity.

EmbyCon dev is at a loss; EmbyCon has not changed recently.

What about:

action: media_player.media_play_pause

i.e. the same command toggles pause on and off, as opposed to :

action: media_player.media_play

and

action: media_player.media_pause

Which may not be supported if the media player does not have discrete commands, just the play/pause toggle.

The EmbyCon entity isn’t on the list for that command either, though as I said in my first post what I’d initially set up has always worked fine in the past.