Using MCPC+ 1.4.7 and a bundle of mods (FTB mindcrack)
This problem happened also on my TEKKIT server after running fine - also just with one gate.
The problem is that when I try and teleport to a stargate it will teleport me there and then back. all configs generate fine and nothing seems amiss until you teleport.
Here's the pastebin and a list of actions I took while the server was up.
1) created the gate 'test' default network, etc.
2) created the gate 'center' same as above.
3) dialed to Center from Test and attempted to go through
4) got 1 "teleported" notification and ended up to the right and facing the sign at Test instead of Center
5) shut down server, pastebin, post here.
http://pastebin.com/uxNLDiKK
Please help, I really love this plugin and would like to get it working again.