Unable to transfer SOI

[wangmaster]

I'm trying to perform a mission of sending a probe to Minmus in career mode. I use maneuver nodes to plan a synchronous orbit to Minmus and everything goes fine initially, until my probe enters Minmus's sphere of influence. At that point, I get this weird trajectory, as though I am still under Kerbin's gravitational influence and Minmus has no effect on my craft. Below are pictures to illustrate.

Here I am approaching an orbit to Minmus:

After I supposedly enter Minmus's orbit, I get these weird trajectories:

The control centre labels my position as "On escape trajectory out of minmus", which makes sense given my trajectory path, however Minmus has NO gravitational pull on my craft whatsoever. I tried burning retro at the periapsis of the blue trajectory: hat didn't produce a stable orbit around Minmus and only affected the escape trajectory when I enter Kerbin's influence again (the other end of the blue line). I even tried crashing my craft into Minmus, it just travelled in a straight line until it impacted, as though the moon had absolutely no influence over it.

Im running 32bit KSP v0.90.0.705 beta, the latest version as of this post on windows 8. I believe my system specs are well above the recommended specs.

Am I doing something wrong?

[vexx32]

It's all looking reasonably normal, judging by those screenshots. Minmus does have quite low gravity, so you have to slow down considerably to get a stable orbit around it. If the projected future path is changing, you're definitely affecting your velocity, so there's no reason you shouldn't be able to get a stable orbit. It may be that you're simply not changing your velocity enough for the orbit to be stable -- Minmus orbits have extremely low speeds compared to Kerbin or the Mun.

Just from a glance at the screenshot, though, if you're burning in that orientation, you're not burning retro -- the pink triangles are normal/anti-normal and essentially change the angle you orbit at, but burning normal/anti-normal won't get you a stable orbit. Of course, I could be wrong, you might have just happened to have that orientation when taking the screenshot, but just to make sure -- the retrograde icon is the green circle with an X through it.

Edited January 11, 2015 by vexx32

[Thanny]

You have no mods installed?

[wangmaster]

Turns out everything is fine, I just didnt burn enough.

Thanks for the help anyway