Hi Guys, new user here!

I've got a problem with my honda trx 250 te fourtrax quad. When i try to change gear, normally from 1st to 2nd gear, the gear number on the display changes from the number to a dashed line and won't change gear.
I've had a search on here and couldn't find the solution, the battery is good, and i've recently changed the angle sensor so thats not the fault either.
Any help would be appreciated!