Looks like from v2.9 of MT queues stats in winbox update slow and give a kind of average value of the last seconds instead of, as previous versions, give instant values.

Is this a bug or a feature?

I noticed this is some of our routers as well, but on others it was fine. We upgraded from 2.9RC9 to 2.9.1 and it stayed that way. The only way that I can tell to get a live view of traffic is by looking at the individual queues and their traffic.

But again, like I said before, this happens on *some* not all of our routers.