So I'm replacing a 2 three way switches because one failed. Worth noting the switches probably 60 years old. I disconnected them and reattached in the same way and only one switch works. I disconnected the switches and using a non contact volatile tester i discovered that there is a hot wire in both boxes when there should only be one between the two. I'm no electrician but I'm pretty good at wiring but this one has me stumped and I could use some help on how to proceed. Thanks