Ghost flame charge

I have a upward facing dispenser shooting flame charges when a tripwire is hit as a detector in my one machine. The dispenser is always powered and when you hit the trip wire the signal turns off and a flame charge shoots in the air. Now i can see flame charges when its off one block above the dispenser and again ruffly 30 blocks in the air. I have removed the dispenser and tried to restart the game and its there. It blinks for a millisecond than is gone and keeps doing it. Only fix Ive found is covering the 2 blocks above it to hide it lol. I have no mods just vanilla.