issue with cisco ise 3.1 dashboard

[BH2R]

hi 
i have an ise 3.1 installed on a vm :

Personas: Administration, Monitoring, Policy Service (IDENTITY MAPPING,SESSION,PROFILER,DEVICE ADMIN)

Role: STANDALONE

Version: 3.1.0.518

Patch Information: none

i've set up ise and declared Network Devices to Connect with tacacs+
i just planed to connect cisco switches and routers to ISE , which is working properly and users can authorize. all good

the problem is about dashboard which shows nothing in authentication and network devices dashlets!
i've searched a lot but found nothing 
honestly i dont know how ise prob (or any other factor) is searching for network devices. why my dashlets dont show my defined network devices?! and how should i solve this problem?

and also i've seen a topic which mentioned dashlets only show radius devices , not tacacs!!! is that correct ?!

[Aref Alsouqi]

I don't believe you will see anything related to TACACS on the main dashboard, I would say what you see is expected.

Cisco Bug: CSCvg08372 - ISE dashboard not display tacacs+ relate information

Cisco Bug: CSCvp02595 - ISE: Need to display TACACS information dashlet on the dashboard

[BH2R]

hey aref , thanks for reply 
isn't it weird that "cisco" has created an application that doesn't support tacacs! why should't show more advanced protocol in dashlets?!   

[Aref Alsouqi]

Hey, I think in the next coming ISE releases TACACS stats would be added to the main dashboard. Also, please note that you can still generate some TACAS reports if needed, and also view TACACS live logs from within the device administration section.