Appdynamics Machine Agents not associated with an Application

[Mohammod.Islam]

Hi Team, 

It seems many of the Machine Agents (around 200) are not associated with any applications. What action we need to to do for this and why machine agents are not mapped with application ? FYI -We are doing end to end monitoring by AppDynamics. 

Thanks!

[Mohammod.Islam]

Added to previous question  ,  for those machine agent Unique host ID is showing in controller UI as

<hostname>-java-MA