A team is currently experiencing issues seeing their custom metrics within the Investigator and thus not being able to use the dashboards they've created. They have nine environments and 3 of the 9 are reporting. All of the agents are configured the same way and the custom pbd is also the same on all of the host. The agents have been reporting fine until recently. I've confirmed that there is no clamping for the agents that are not reporting and the class path defined is correct.
We tried testing if recycling the EM in which one of the agents was running on would resolve the issue and it only resolved it partially. Only one of the custom metric folders started reporting out of the three.
Does anyone have any suggestions as to what else should be checked or tried?