Left turn signal will not blink when I press the break paddle.

Hi , my left blinker will not blink if the break paddle is pressed, it will sometime hesitate to blink and will blink once or twice. The right side seems fine, flasher relay replaced, the emergency switch is new. Again the right side is not affected at all. The left blinker will resume normal operation , when break paddle is not pressed. However what I noticed is a little green light is on where the arrow of the left blinker will blink on the instrument cluster if the break paddle is pressed , but the blinker switch not engaged to blink . Please help, I have no idea what is causing this..