Did some hill repeats on the first two sectors of the Alpe.
On the second and subsequent repeats I found that the initial average for a sector was the final average from the previous climb of that sector, and the current average for the sector was the average across all ascents of the sector.
Basically it looks like some thing is not being reset when you repeat a sector of the climb.
Average heart rate may have the same issue but I wasn’t really paying close attention to that average.