’13 Honda Rancher 420 AT shifting problems??

Today I was riding with some friends and my 4wheeler starting acting up.
It would barely go into drive/1st. Goes in Reverse fine. While driving it will go into 1st, 2nd and then it would try to change gears but wouldn’t; even when I had it in manual mode it was still making that clicking noise in 2nd gear; I managed to get it into 4 gear in manual mode but it would still click like its trying to shift. When its in automatic I can’t get it to do anything. Any thoughts on whats causing this? Its only got 400 miles on it, and I don’t ride the piss out of it when I ride it.
By the way I do have bigger wheels on it, 14 inch wheels with 26 inch tires, could these bigger wheels mess up the shifting. Thank goodness I purchased the extended warranty on it, its still covered.