What is your technology telling you?

We’d set up our GPS to fly from KPDK to KPUJ to perform the ILS/LOC 31 approach and then onto KRYY for the LOC 27 approach. Flying along, everything was going smoothly, heading and altitude right on the money. As I was vectored in for the ILS, things started to go sideways. As I turned on the approach path, I noticed my CDI #1 needles had the barber pole flags. “Hmm… ok… no big deal,” I thought.