I hadn't tied, but upon doing so...looks like everything I try to put down from Galacticraft is doing the same thing. Shows for half a second like you place it, then just gone?
I have just clean installed this pack to my hosted server, but when in Creative mode, I am trying to lay out the launchpad tiles and as soon as I set it down, it just disappears. Has anyone seen this before or have any clue what may cause it?
EDIT: It works fine in Single Player...