[1.16.5] Multifarm rejects seeds, doesn't make humus

[exentio]

My farm is currently rejecting wheat seeds after some seconds, and it's not generating humus. The farm placed the dirt blocks and water by itself. Fertilizer has been provided, there's a Mekanism water pump filling the farm, and it's powered by some Mekanism wind generators and through a Flux Network.

This is the GUI of the farm:

This is the layout of the farm (5x5x4 multifarm, 11 block radius), removing part of the roof (Luminous Glass from Glassential) didn't work:

I'm currently on 6.0.11 (last version available), I already tried asking on the Discord server but nobody knows what could be going on, so I thought it could be a bug.

[Br4nford]

same here

[Exious]

same problem

[DeadLauncher]

same here