Front landing gear broke

On mine there is square tube that comes across from the drive leg (motorized) to the driven leg (presumably the one that's failing). The tube slides over the drive shaft of the driven leg. The shear bolt connects the tube to the drive shaft making the physical connection between the two legs. If something gets bound up in the driven leg, it can cause extreme stress on the gears in the leg, the gear box and the motor. To avoid damaging these critical parts, the shear bolt is designed to break before those other components do (analogous to a fuse in an electrical circuit). The symptom of this failure is that the drive leg turns and the driven leg doesn't. If your issue turns out to be the the shear bolt, make sure you get a new bolt with the same rating (stamped on the bolt head). Of course you'll need to remedy whatever is binding the driven leg.

I was having similar issues. I ended up drilling holes in the outer casings of the legs allowing me to squirt lubricant onto the screw gear inside the leg where mine was binding. I do this with lithium grease spray before every trip.