NTA server does not show all flows in Web Console

On the NTA summary page do you see any event? Also have you added all the nodes and interfaces that you configured into NPM?

Yes, I see some events about % usage of monitored interfaces. Yes, all nodes and interfaces are added to NPM.

Right now I disable collecting data on some interfaces and left only those, that recently were shown as Never received in Last received flow coloumn at Flow sources management tab. After that Web Console shown me that traffic exists on these interfaces and draw some graphics.

But if I enable recently disabled interfaces, Web Console again will cease show me flows on some interfaces. There may be restrictions on the number of interfaces on which data about streams are collected

Can you show us a screenshot of the events page on NTA?

There are two routers as netflow sensors (rkc8, rkc9). I think only the last one picture is interesting. When I added rkc8, I also added all it sub-interfaces to NPM. Only Vlan50 interface was not and it was added automatically. Now Web Console regularly update information about flow on sub-interfaces 4.56, 4.53, 4.55. Information about interface flows on 4.192 never received, although there is traffic there