I saw it - maybe it's a clue of some sort, maybe it's a bug related to Arthur streaming in multicrew.It happened again in today's stream....
Source: https://clips.twitch.tv/AggressiveConcernedPangolinUWot
At any rate, different station from last time so my wondering if Garrido Market had been renamed in honour of Bruce and this had led to the weird message can be ruled out.
I will give my sincere thanks and nothing of any monetary value to whoever figures out the right answer.