Crazy behaviour 1 Player on dedicated Server!

Hi Guys. I have a problem.

When I start my single player and spawn a projectile from my character, it is fired from the right bone. The same thing happens when I do this on a dedicated server, where i have 2 or more players.
2Player.png

But when its a dedicated Server and i have just one player, the bone is on a total wrong place?
1Player.jpg

Any suggestion why this happens?