Solution:
I came across to find a solution to the problem. I would like to post it here to help others.
First, the issue with the Server Manager is not opening but using resources is caused by Symantec as mentioned above.
The problem was discussed here:
Windows Server Manager not showing
And have a workaround here:
Unable to launch Server Manager, Active Directory Administrator Center, or Hyper-V Console
Typically it is caused by Symantec Endpoint Protection SEP 14.2 MP1, upgrading it to 14.2 RU1 (14.2.3335.1000) should fix it as mentioned in the thread.
Second, back to the original problem with roles not displaying,
I found some Application Error in the event Viewer showing as
Faulting application name: ServerManager.exe, version: 10.0.17763.168, time stamp: 0xc452e206
Faulting module name: wmidcom.dll, version: 10.0.17763.1, time stamp: 0x0fb50d5f
Exception code: 0xc0000005
Fault offset: 0x0000000000013bc8
Faulting process id: 0x3cb0
Faulting application start time: 0x01d5faa4998f0c2c
Faulting application path: C:\Windows\system32\ServerManager.exe
Faulting module path: C:\Windows\system32\wmidcom.dll
Report Id: f56c7f7c-0052-4e67-991a-eabfe10d8140
Faulting package full name:
Faulting package-relative application ID:
And here is how I fix it:
Delete the Server Manager list file from: C:\Users\\AppData\Roaming\Microsoft\Windows\ServerManager\
In registry Rename
HKLM\SOFTWARE\Microsoft\ServerManager\ServicingStorage\ServerComponentCache
to
HKLM\SOFTWARE\Microsoft\ServerManager\ServicingStorage\ServerComponentCache.old
In server manager Uninstall roles and features removed
MultiPoint Connector
Reboot.
Sources:
Server Manager crashing - fixed!
Remote Desktop Services - Server Manager Crashes - CloudCompanyApps