OK, just did a quick game to show the issue...
here's the game.log file:
http://pastebin.com/N8DpCG99here's the forever.log file:
http://pastebin.com/qNbk3eSSThe replay of the game is attached.
The only mods I'm using are FAForever, Community Bug Fix, and Community Balance.
I started the game from the FA lobby using "Create Custom Game". Go in, start the game as 1v1 and have at it. Build an air factory, then try to build anything. As soon as the unit is finished building, it just sits on the air factory and never leaves. If I were to destroy the air factory, the unit would leave, but it then doesn't respond to any commands.
UPDATE:
OK, I turned off the Community mods and I was able to build using the air factory just fine. I then turned on Community Bug Fix and it worked fine. I then enabled Community Balance and it stopped working. I liked having both of those mods on before FAF, so it'd be nice to be able to keep using them, unless FAF already incorporates them...