Multiple default groups shown in Stats

[GaryJones]

There are two default groups in this list - in the 2nd and 6th positions.

When clicking the one in the 6th position, then the list for the one in the 2nd position appear in the panel below this list i.e. I can't access details of the requests that had 163 bytes.

There appears to be a couple of instances (1, 2) where a missing group name gets set as default, and it's the group name that is used for the toggle.