Another electrical question

[Wulf202]

But if the 2 wire is bringing the power in, why is the black from the 3 wire jumping across both switches?

Wired so that you have to turn the right switch on to power the left. Stop asking why. It's likely the previous owners "improvements"

[Hotchef181818]

Wired so that you have to turn the right switch on to power the left. Stop asking why. It's likely the previous owners "improvements"

We have already covered this part and that's not how it's wired. . Left switch is first in line, jumper is not on the switched power. The issue is the red wire heading out to the light on the top of the left switch which goes from 36v(off) to 85v(on).

Does les the fact that 85+36 = 121 point to the problem by any chance ?