Usage time of gear calculation wrong

The new gear view may have an error. I have 11 activities with a hiking shoe with 7 in th 2-4 hour range and only 4 with 1:20 to 2 hours. However, the left sidebar shows 1:58 hrs usage time and 1 day usage time. The total time is 27:21:48 instead, so 1 day 2:21:48 hrs.