Intensity minutes wrong

I have Edge 1030 plus, fenix 7 watch and hr pro strap. Everything was recording ok and intensity minutes were ok until I changed battery in the strap. I rode my bike for 5 hours yesterday with an average hr of 142 and got 2 intensity minutes. My hr was recorded on edge 1030 but not on the fenix watch. My heart rate zones in user profile are set up ok. My recovery is also ok at 56 hours. Any idea why only intensity minutes were not updated?