2018 Ford Fusion Hybrid false overheating

I recently went on a trip that involved driving through some hills, during the trip my cars temperature light came on. It was full on coolant, the radiator fins had no major damage, rhe fan was running just fine, no leaks were found. The engine was not necessarily hot to the touch so I looked into how I can pull up the temp Guage on my display, and after doing so saw that the car was running at a usual temperature. So I kept driving, fairly soon after I lost all acceleration and was forced to pull over, still everything thing seemed to be fine, after waiting for a few minutes I started the car and had regained acceleration. This occurred on both the arrival and departure of the trip. Hasn’t happened in city conditions. Unsure of what may be causing it, thinking possibly the ecu or possibly the temp sensor.
Note: Ran it through and obd-II and found no codes.