MUH user randomly is not able to reach any resources, although Terminal Servers Identity Agent shows that MUH user was authenticated and a list of TCP/UDP ports was defined in the Terminal Servers Identity Agent.

SmartView Tracker log shows that user's connection was dropped because no user was identified.

Output of "pdp monitor user <User_Name>" command on Identity Awareness Gateway shows that no TCP / UDP ports were allocated for the involved MUH user:

<USER_NAME@DOMAIN> {...}
Groups: ...
Roles: ... 
Tcp Ports: -
Udp Ports: -
Session UUID:{...}
Client Type: Terminal Server Identity Agent
Authentication Method: Trust
Connect Time: ...
Next Reauthentication: ...
Next Connectivity Check: -

Debug of PDPD daemon ('pdp debug set all all') on Identity Awareness Gateway shows:

[SESSION (TD::All)] pdp::PDPSessionManager::getSession: session_id: (seesion_id) not found in cache. checking in storage
...
[PEPC (TD::Events)] pdp::PepcSessionAdapter::adaptMultiHostUserSession: tcpPorts: 
[PEPC (TD::Events)] pdp::PepcSessionAdapter::adaptMultiHostUserSession: udpPorts: