I haven't used NTA much but I have had a need to look at the Data today and although when I click on a switch name all the various Charts display data when I click on an individual interface on that switch I don't get any data displayed even though the Netflow Sources table shows that the interface has received NetFlow data in the last couple of minutes.
Has anyone seen this issue before, any ideas what could be the issue?
My current version of NTA is 4.2.2
Check that the interface is being monitored in NPM
Check that the interface is definitely sending netflows.
And check that the view hasn't been changed to a custom date range where there is no valid data for anymore.
Otherwise post up some screen shots. A visual my help trigger an answer.