We just upgraded to FMS 5.7.1 and .Net 5.9.7.3 and Nexus 5.9.7.4 and the logs are filled with CDT errors:
2015-05-13 09:59:18.476 ERROR [Data-3-thread-1427] com.quest.nitro.service.agent.TopologyAdapter - No end time set for observation "processes" at node path
"[FglAM::ApplicationServers-DotNET-5_9_7_1/DotNetAgent-CDT-5_9_7_1/cdt.xml]/__declare__:__declare__/__top_of_tree__:__top_of_tree__/DotNetModel:DotNetModel/20e3b4f7-b5b6-4f8b-bcdd-202c544e352b:*/domains:domains/14826413-1a3c-462f-96a6-4b322c7c0d98:*/DotNetDomain:*/__top_of_tree__:*/DotNetDomain:DotNetDomain/14826413-1a3c-462f-96a6-4b322c7c0d98:*/servers:servers/7f4fc3c6-dd89-4165-99e6-0b370edc0cad:*/DotNetMonitoredServer:*/__top_of_tree__:*/DotNetMonitoredServer:DotNetMonitoredServer/7f4fc3c6-dd89-4165-99e6-0b370edc0cad:*/applicationInstances:applicationInstances/b7a4b49c-1d75-4630-b192-edf95c88ec94:*/DotNetIISApplication:*/__top_of_tree__:*/DotNetIISApplication:DotNetIISApplication/b7a4b49c-1d75-4630-b192-edf95c88ec94:*/iis:iis/7e7d2da6-9766-4af1-a9ae-3366c8d50686:*/DotNetIIS:*/__top_of_tree__:*/DotNetIIS:DotNetIIS/7e7d2da6-9766-4af1-a9ae-3366c8d50686:*/applicationPools:applicationPools/a3659d1a-55b5-4dc6-a795-dc9c21fa9c9c:*/DotNetIIS7ApplicationPool:*/__top_of_tree__:*/DotNetIIS7ApplicationPool:DotNetIIS7ApplicationPool/a3659d1a-55b5-4dc6-a795-dc9c21fa9c9c".
Please ensure that at least one value action is used in the construction of the observation.