2008 Chevy Truck Turn signals

I purchased a front and rear after market bumpers from Fab Four bumpers. The front has running/turn lights and driving lights mounted in it. I connected the lights per drawing and color codes. Everything is in working order, signals worked, running lights work. The next day my right turn arrow started flashing very fast so I thought a bulb had burned out. All bulbs work fine. Then sometimes the left would blink very fast, still all signal are lit and working. I double checked connections and wiring. Any thoughts? Everything lights as it should they just blink rapidly.