First bug is the one that was supposted to be fixed in 6.0

Fixed bug when winch was automatically pulled without players input

sadly I had it happen to me twice while playing on 6.0 PTS so its still bugged

Second bug happens when you travel between maps using gateway while towing second (empty) truck behind you. It has to be 2 short vehicles, preferably scouts. When you travel to the other map the vehicles will remain attached with the rope - which is nice, BUT you are no longer able to control the winch with "R" and "F". To make it work again you have to disconnect the winch either via functions menu (V) or by pressing the X on the rope and then connect the winch again.