Anyone had any weird issues with their Speedhut speedo and tach acting weird?

The other day I was doing some work on my dash, then upon the next drive I noticed my tach was reading way off. A quick reprogram later and it's back to calibrated. The weirdness was that the calibration setting didn't change. I moved it up and down a couple, but I ended leaving it on the one it was already.

Then today my speedo just decided I wasn't in the US anymore and jumped up a few dozen MPH. Or more accurately, started reading in KPH. After I got fuel and restarted it was back to MPH, but weird...