I have just updated my Apple Watch S7 to WatchOS 10 beta, and I am enjoying the new cycling features that allows me to read cadence/ power/ speed directly on iPhone. The bug is, even though the watch is paired with speed sensor, and allows me set up wheel size, but when cycling, apple watch is actually not using the real-time data from my sensor but GPS data. When cycling in tunnel and underground space, there is no speed data. Could any one explain to me how I show set up my watch? or, this is a bug that need to be fixed? Thx!