I have a 2007 Yamaha Grizzly with less than 500 miles. I put it in the water for the first time yesterday and the ultramatic held up suprisingly well with no slips as I was previously warned about. However, after coming out of the water my 4x4 button would not stay in for some time and now my left rear wheel is not providing any traction. When I put it in two wheel drive I am only getting power from my right rear tire and in four wheel I have power from the front two and back rear tire. Could my rear hub possibly of been damaged? What would cause this issue? Thanks in advance.