When riding sometimes (today at the Academy ride 5) , the cadence unexpectedly and incredibly doubled and didn’t self adjust as I changed cadence. Sometimes shifting adjusted it for a minute or two then it would double again. I kept shifting in free ride (but this happened in steady state too) and it finally corrected itself to the actual cadence (took several minutes). I’ve had this happen in other rides but this took longer to resolve.
Anyone have any idea what’s going on and what to do when this happens?