Posted this in the general support thread but was referred here by moderator: I tried to use mechjeb\'s ability to 'keep alive' the debris to make deployable 'landing probes' that piggyback onto my main vessel i but got some problems: even if i have an SAS on my probe i cannot alter the course without using the engines. there is no response at all to wasd when engines off. I can throttle and engage SAS ok, and steer when the engines are running (although with some strange limits, as sometimes not able to turn left etc.) when i add RCS i can use those with wasd, but their behavior is also strange, as in mirrored effects etc. (turn occurs in direction of plume, not all RCS ports venting etc. ) i can operate landing gear just fine. I have tried this with the probe constructed above and below the command module, but the error occurs in both cases. Initially i did not think this was due to mechjeb, it seems like there is a bug with how the axises of the child vessel is set up when it detaches, but i was referred here. Could it be an issue with mj? I\'ve attached a ship to demonstrate, requires mechjeb 1.8.4 and novapunch 1.2 beta, but the bug can be recreated with stock parts as well. (+ mechjeb o.c.)