I have some trouble with RC15 and RC17. I put my AE in a shuttle, with some marines in the OC; I drive the shuttle to the Earth surface, land it, and deploy manually my OC. The results are that the OC is floating over the ground, and its status is FTOL and not TAXI. If i deploy the OC when the shuttle is not on the surface, the OC floats at the altitude is deployed, regardeless of the gravity. In this state, the OC does not accept any command and is not drivable.
I have tried with 1.007 and the OC is deploying regularly.