1965 Chevy Truck C10

[esprza23]

I need some troublshooting tips how to resolve the following:
My Dash Signal indicator (right side) stays on, the Dash Signal indicator (left side) blinks as it should. Both the front left and right and rear left and right signal lights work just fine. I have replaced the flasher (round) thing and checked all the fuses.

I'm not sure if it's a ground issue? I've read to clean the surface where the dash indicator light goes in the back of the Dash housing and also clean out the inside of the plug where the light goes in.

Any suggestions/tips are appreciated.

thank you.

Sam
Sugar Land, Tx