After removing the "Speed Upgrade" when the progress bar is full, mobs in the cage cannot be harvested by right-clicking with sword, and they will no longer grow. The only solution is to put back the "Speed Upgrade" and let the progress bar reach 100%.

Mod List

Forge_43.3.2

Remove Speed III Cage Upgrade

Remove Speed II Cage Upgrade

Thank you for the report, I will take a look at it soon!

Thank you, I will backport the change to previous versions soon.