Hit ENTER after each Tag to add it to your post; Numbers in parentheses represent the Tag's usage.
This could be in other reports as well, but the two that I've noticed so far is:
Admin -> Reports -> SMTP In Sessions
Admin -> Reports -> SMTP Out Sessions
For each of those, the Bandwidth column sorts alphabetically. For example, this is the order I'm seeing in Domains mode:
The same problem exists for Trend mode on the Bandwidth column.
As a side-note, on the Message Bandwidth report both the Data Sent and Data Received columns are sorting properly.