Currently playing on a Forge 14.21.0.2340 server, and TreeChopper doesn't work. I have the mod installed both server-side and client-side. I am also using FTBLib and FTBUtilities, but removing them doesn't solve the problem.

Hello,
please try to update your forge. Your version (14.21.0.2340) is still a beta. The recommended forge version is 14.21.1.2387. Let me know

I will try that!

Edit: I can't try that right now, because FTBLib is crashing on that version of Forge for some reason. I will have to wait for a while!

Fixed