This save chrashes about 50% of the time on the current day (26th of sandstone)

when it chrashes there 1 line in the dfhack console about a missing unit with unit id -1
--This prolly is not the problem, it just chrashed without that line



For a fairly precise time of the chrash follow the dwarf Mosus Fikotlerteth who is getting some remains to turn into bonemeal.

Just about when this dwarf returns to the main fortress floor (Z-4) with the remains it chrashes.
(i've seen it chrash just before he reaches the level and just after he reaches it).

running 'clean all' before the chrash doesnt prevent it.

creating a burrow in the living room and enacting the the civ alert seems to prevent is.