First I'd check your chip settings. Something in there might be messed up. I know a lot of people have had problems with those chips. If nothing seems out of place, try the chip
in your backup vlocity. If the same thing happens then you know it's the chip.
If not, then it could be a burned out motor on the first hopper. Don't put your stock chip in with the bad hopper
though, if the motor is bad it can burn out your chip. So keep your one working hopper's parts out of the bad hopper lol. I know because I did that once and ruined two vlocities instead of one
Another problem you may be having is a sensor issue. Sometimes the black covers on the eyes slip and block the signals. I usually suggest you just pull the covers off gently. , then paint the inside of the eye zone black to keep stray light out(especially with a speed feed). The other issue is you may already have stray light causing a problem. Make sure no light is getting up the feed neck.