Sounds like you have your hands full but also space for a big park of your own down the road. The tracks hang up for a number of reasons. Sometimes a large rock(large match head size
) gets stuck between the pads. This causes a hump in the chain and the grouser hits the body. Other times it is the same size rock jammed in the chain. The tracks don't have tensioners so occasionally they get too tight because of this or just a lot of wet sand packed in the rollers. It's a bit of a pain sometimes but it's a tiny little toy and I forgive it
.