Mechjeb Not Working with New Kerbodyne Engines

[Firephyz]

I notice that whenever I add any of the new parts like the Kerbodyne engines, mechjeb will fail to calculate any delta-v for the entire rocket. Even if I only use a LFB KR-1x2 in the first stage, all delta-v calculations for the upper stages will disappear and it will look like my rocket has no stages at all. The only way to get the delta-v readings back is to jettison the new parts and reload the rocket from the tracking station. This also happens in the VAB and it makes it very difficult to design efficient rockets. If anybody knows how to fix this or has a patch, please help me Thanks

[Red Iron Crown]

Which version of MechJeb are you using?

[Firephyz]

I'm using version 2.2 which I'm pretty sure is the latest version. Also, the rest of my game is unmodded, just the vanilla ksp.

[Firephyz]

I have version 2.2 which I think is the newest version. Also, the rest of my KSP installation is vanilla with only Mechjeb installed.

[Guest]

Mechjeb is constantly evolving, so to speak. The latest version is 2.2.0.0-222 and can be found here : http://jenkins.mumech.com/job/MechJeb2/