After some struggles that some of you may know if you have seen my previous post I made it to Duna and back for the first time with some very rewarding science points.
So I build a multi-launch ship to get me landed Duna and back and after getting all 3 parts to the ship docked in an orbit around Kerbin and setting up a maneuver node to get me to Duna I tried to boost at the node and the ship had weird physics as shown in the video. I have no mods installed. As a note I was not pressing any keys to control the ship and have even gone as far as disabling all control of the ship via toggling off all reaction wheels. The only thing that made it fly straight was undocking the lander and fuel.
EDIT: After using the engineer I had on the ship I managed to rearrange the docking ports to be inline and it now works. Thanks to eveyone who responded and gave me pointers.
So I am looking at buying the Afghanistan map in full and am planning on waiting for the next big sale (ex the summer sale) to do so but I would like to know if since it currently has an early access sale if it would even be discounted further during the summer sale or if I should just go ahead and buy it now?