Repeat crash

It looks like you're experiencing the same bug I reported. I see the same error message in your log:

 

[05:48:06.867] [1] [ERROR] Assert failed: Two seeds of different subspecies just absorbed
Assert failed: Two seeds of different subspecies just absorbed!

 

It seems to happen when different subspecies of sleet wheat try to stack either on the ground, or when a dupe tries to stuff them together in the same building. You don't even have to be gathering any sleet wheat for it to occur, because sleet wheat can naturally mutate in the tundra biomes, due to their proximity to wheezewort, which may change the plant and have the mutated seed drop on the same tile where the original species was already stacking.

Changed Status to Dupe