I’m new to this site, I’m sure there is a thread but can’t find it. Have a new to me L3400, running great, but on a couple an occasions it has stopped moving. Like stuck in neutral, but moving levers around it started moving again. This time can’t get it to move. Gear drive, the clutch feels fine. When shifting I hear the gears grinding and meshing and when shifting the forward H/L reverse shifter I feel a slight movement in the wheels but no movement? Pro works as does the bucket. Kubota dealer not much help. Suggestion?