My dung beetles are not making fertilizer. I put manure in their inventory and their current weight increases but they are not processing.

I am having to spend a ridiculous amount of time collecting manure for all ten of my compost bins. This is insane as well. Please make primitive plus so that it can be used with the stacking mod???? PLEASE????? The amount of fertilizer I need in order to play this game is becoming a strong deterrant. I just spent 3 or 4 hours on the game and the majority of that time I was doing nothing but collecting manure. No fun!

Oh, and I know about the Bonemeal fertilizer. This is a fantastic benefit in the game.... if I can get enough keratin. It would be really nice if chitin were also capable of making this fertilizer.