Devices not showing up on Netflow Analyzer

New installation of Netflow on a Linux Server, V12 both Netflow and OpsManager.
OS Name & VersionLinux, 2.6.32-504.30.3.el6.centos.plus.x86_64
OpManager version
12000 (64 Bit)
Licensed for 25 Interfaces
I was able to add two of my routers, (although they show up as switches?), a Cisco 7301 and a 7304. Added to both Netflow and NCM without issues.
Tried adding a couple more and they don't show up? I can run tcpdump on the interface and see the data is showing up on udp 9996.
Any ideas on what to look for?
Didn't have to add anything to Netflow for the first two routers to show up, but when trying to manually do it I get the follwoing:
Using "Discovery", "Add Device", they add without issue and show as already existing in "OpsManager" if I try to add them twice. Just no sign of them anywhere.
When trying to add them from the "Inventory" page I get a message "Missing translation: No interface found.Device Adding Failed".

Thanks.