Alright, I got access to the alpha today, started building everything I could on the sides of the mountain I started next to (hope that's a feature and not a bug, I love the oblique angles I was getting when designing my base). I built the land vehicle factory directly on the flattest piece of ground I could find, and told it to start producing anti-air. After the first one finished, I ordered it to move off the pad and I got this: I laughed for probably ten minutes, but in all seriousness, this is really somewhat difficult to deal with, since it only drives up and to the right (in relation to the screen) and will not go ANY other directions. Happens with every vehicle from the standard factory. The advanced factory has no issues and produces grounded units that work as they should. In other news, the anti-air sometimes fire at it, sometimes not, so I think that may also be a slight issue, though I'll test that one out a bit more and get back on that.
Known issue (and duplicated lots of times already )! Please use http://pa.lennardf1989.com/Tracker for bug reports in the future. Thanks for playing PA.