brake light cuts emerg flashers?

[magnethead]

I'm not sure if this has to do with my wiring the fender lights as blinkers (which i've gotten several props on doing), but if my emerg flashers are on and i press the brake pedal, i lose all running lights. Did i lose a ground somewhere other than on the fender lights?

everything else works fine- blinkers and brake, emerg only, brake only, running lights and blinker, running lights and emerg