Turn signals not working, blowing fuse

I have my gauge cluster out. I tried disconnecting all of the connectors on the circuit and the only connector that eliminated the ground was the bulkhead connector for reverse lights and wiper motor.

Tonight everything is working again so I must have bumped or disturbed the problem area.

Nothing obvious, no obvious burnt or loose wires or connectors. I’m going to leave everything apart and continue to look for the problem and post when/if I find it.

I was hoping it would be something obvious.

I’m seriously considering removing the entire dash harness from the vehicle and examining it on the bench, just looks like a daunting task.