I am trying to join my local server. Says server has gregtech 1.1.2.a and I have 1.1.2.a or whatever. But it won't let me join... How does this make any sense???

Hi, Had the same issue, turns out I copied the config folder over too. All i had to do to fix it was delete the GregTech config file

Mismatches like these are often caused by incorrect configs between the server and the client. Checking the configs and potentially repairing the installation should fix it for anyone who finds this in the future.

Got the same issue w/ the newest version