Can't slowdown on a server

LKummer

Member
Oct 25, 2013
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Minecraft Version = 1.6.2

Forge Version = 6.2.72.871

Galacticraft Version = 2.0.3.837

Detailed Description = My friend and I play on a server with the mod, I am the host of the server and when we fly to the moon I can slow down.
But when he holds the space key he slows down on his screen, but on my screen he is falling in full speed on my base. (and he exploded)

Please fix it, to me it's a game breaking bug. And please make the fix available for 1.6.2.

Full Forge Log = http://pastebin.com/vPTHKzcP