Bug/Issue "Unit move couldn't be submitted on time" in local play

Paraphrasing the error message, sadly didn't take a screenshot

Just played our first local multiplayer real round of Wargroove (4 players), after 20 turns or so, probably after a turn end, suddenly the match ends and an error message as in the title pops up. The error message sounds an awful lot like something I'd expect in an online match if the connection breaks (which afaict didn't happen on my machine) but not in a local match.