Drudanae Seedlings Not Working Properly

[Saint]

I'd appreciate any help y'all can provide, here's an explanation.

Proper operation:
-Combine Bucket and Dru
-Place
-Wait for the seedling to Grow
-Harvest (this turns the Grown Drudanae seedling into a Clay-filled bucket and adds 1-3 Drudanae to your inventory)
-Pick up your Clay-filled Bucket
-Repeat

Something has caused this process to break at the Harvest step. Instead of becoming Clay-filled buckets after harvest, the Grown Seedlings remain Grown Seedlings, but unable to be harvested. Obviously, this makes buckets a finite resource and is pretty much a run-killer for me. Started in Fort Joy, I was at the Fort Joy - Beach warp point with 15 buckets when it first happened and it appears to have broken every bucket i've encountered.

Attempted fixes:
Restart - No change
Reload - All buckets still broken, even in saves prior to the 15-bucket incident