Just tested out the latest update. I'm running .21 via steam and have MechJeb2, KAS, and Kethane mods installed with your RT2. What I've noticed is if I attach the MechJeb2 part to my ship and try to use MechJeb the throttle will jump to about 1/3 and bounce/shake at that position. I have tried toggling the delay via the probe part but hasn't seemed to help. Any other solutions? I'm pretty sure it's MechJeb2, if I don't install the MechJeb part on my ship and launch manually it works. Thanks again for the wonder work you're doing!