I have a client who is unable to see any performance data in DCNM WebClient (under Performance) for NPV Links which are defined/populated in Inventory. They show up there and the configuration seems to have been done correctly for flows, collections, etc. The ISLs/NPV Links checkbox is selected in Admin-->Performance-->Data Collections page. The fabrics are licensed.
I can't seem to find any reason this would be happening. Any ideas? Thanks!