The bug is basically if you command constructor or commander(havent tried with any other uints) TO the transport to be load it will buff the command forever.
Example: When you tell the transport to unload the unit it will INSTANTLY repick it up and will be stuck in that loop of you unloading it and the transport instantly repicking up.
To reiterate this bug only occurs when you tell the "unit to load into the transport" and "not the transport to load the units"