[A15] - visitor stayed in med bed resulting in an event spam with beeping sounds

[Omenpapa]

A couple guys visited my colony, then later they decided to leave. 1 of them however thought it's a good idea to use my medic bed and stayed there. Then the game started spamming me with this message at the top left : "Visitors from the Brana of the Rock are leaving"

I get this message like 5 times / sec which results in a constant spam and continuos beeping sound.

I changed the bed's type to normal, which kicked the remaining visitor out of the bed, and he left the map. However this did not solve my issue.

Playing with permadeath ruleset, so got no earlier save.

using these updated mods only:
-crafting hysteresis
-miniaturisation

Any idea how to solve this, other then starting a new game?(This is a new colony so it's not the end of the world if I have to restart but if it happened once.. it can happen again so..)