The 4-way switch is in a 4-gang box with the different sources. The source for this circuit is upstairs where the master is.
This is just confusing me even more. I think I’m going to take it all apart and start it over!
But I’m thinking the problem is that this switch was added in after the rest of the circuit was already done… And the drywall was up to. So I think the electrician just tapped in just made it work.