When outside lights are on right turn signal don’t blink

Hi guys I’m having an electrical problem I believe . It’s on a 1995 t800 with a trailer .
I noticed when all my outside lights are on my right turn signal light don’t blink or clicks. My left one works fine .
When I turn off all my lights my left one still works fine but when I switch to the right, the front signal light works but my back tractor lights both blink like if I had my hazards on . Except the left back one dimmer than the right .
When my right one is blinking the dash lights inside can blink with it also . Another thing I noticed when I turn on my outside lights my right signal indicator inside cab turns on with lights but won’t blink when I put switch to the right signal light

 

Yea it has led lights . I was looking everywhere for a ground I can’t find it .

 

I unplugged trailer first thing I did. And what do u mean take out bulbs .? Like disconnect outside lights one at a time or ?

 

Sorry man I understand . Didn’t think of that I’ll try that first thing thanks man .