Is my 1993 Miata Too old school for LED's?

This weekend I took a shakedown road trip in the Miata I have been working on. I had a tail light out so I replaced it with an LED replacement bulb. As it turned out, bad contact in the tail light socket, so I didn’t really need to upgrade, but I digress. After I got on the freeway, the cruise control wouldn’t work. It would hold speed, then cut out randomly. Very annoying. After a few hours of that nonsense, I put the regular bulbs back in, they worked fine and the cruise control worked flawlessly for the rest of the trip. Maybe I was holding my mouth wrong?