Remote Play suddenly not working on Steam Deck

[Kurai Shidosha]

My wife and I are trying to play some Lego games where my PC hosts the game and streams it to the Deck. This previously worked flawlessly, for a good few weeks, but all of a sudden now when I send her the invite to Remote Play, she accepts, I see the stream start on my PC and her profile switches to playing the game, but on the Deck absolutely nothing happens. No stream opens up and she's just clicking around in the Steam OS menus. Anyone?

[Kurai Shidosha]

Solution found:
PC had Steam set to Beta channel but the Steam Deck was on Stable. Setting both to Beta resolved the issue.