For reference, I am playing the Reclamation Modpack, a 1.20.1 pack, and when I use certain crops, their drop tables seem to point to random other crops.

These crops include:
Mushrooms (red and brown) giving carrots and mandrake
Flax (Supplementary) giving mandrake
Oxie Daisey giving dandelion
Sugar Cane Giving mandrake products
Pumpkin giving carrots

Certain crops seem immune to this effect, and certain seeds of the same crops will not break in the same way.

Breaking and replacing the seeds seems to fix it temporarily, but not permanently.

Harvesting the seeds causes no issues raised into the console.

I have no clue what's wrong, but its very strange, the game seems to think some seeds are for different crops entirely.

Having the same issue, on game loading, harvesting crops yield recessive specie items and are stuck after harvest, (not growing anymore) have to break them and replant them.