We've seen this throughout a number of versions and doesn't yet seem to be fixed.  When we're in the IP Group view we cannot order by actual IN / Out traffic.  When trying to order by traffic it does not differ between bps, kbps and mbps properly, i.e. it will list like:

107Mbps

90Mbps

87bps

10bps

5Mbps

Ordering by actual utilisation is fine, however, utilisation is of no use to us.  We would much rather see which IPGroup is actually doing the most traffic in and out of our data centre.

Since version 9.5 it appears that if you do a consolidated report from the IP Groups this does show and order correctly but the normal IP Groups view does not.

James Greig