I have a miss at 1800 rpm. It can happen during accelerateration or constant throttle but only at 1800 rpm. It happens randomly. My dealer has been trying to figure it out without any luck. He went thru the normal troubleshooting, checked sensors, wiring and on the dyno.

 

Knowing what kind of bike you have would be helpful.
But 1800 rpm is a little low to be either accelerating or even cruising. You might be lugging it.
I know you describe it as a miss, but what you're feeling could also be a lean surge.