Awesome project! - I like how you blocked out the weapons, some of its body parts, and the overall form, despite the somewhat organic shapes involved. The animation shown on that GIF is really nice too.
However, something seems to have went wrong with the exporting/uploading process, because the file I downloaded (the most recent update / the second version) differs from the one shown in the images. It has an unfinished axe and, strangely, it starts to perform an animation the moment it's spawn in, after which the "Stand/Fly" control changes only its left leg orientation.
Since you wrote that the system detects whether the mech is docked or not, I speculate that the problem might be that the blueprint was saved while the mech was docked. So spawning it in is like undocking it - it changes into its flight posture automatically, which unfortunately breaks the hotbar control for this animation.
Anyways, it's a splendid mech, and I would love to see its more ironed-out version :)