apple watch activity app not using map my run data - how do i get the information imported to map my run?

Was using iPhone 6plus and new Apple Watch along with a polar HR monitor Bluetooth Rd to the phone. Using watch to start map my run while phone in armband and initially data appeared on activity app in grey bars with map my run written next to it (as opposed to green bars for exercise)

Changed to iPhone 7 and had to re sync watch to new phone - have not been able to get map my ride to write to activity app since. Have uninstalled map my ride and re installed, have checked and unchecked health app-get HR data from watch, no change in MMR data appearing on activity app exercise section. Any suggestions?