Mongodb ops manager don't monitor several instances from different project at the same hosts correctlly

I use mms to monitor mongodb cluster just ( include shard-cluster and replset )
several instances at a host that belong to different replset and different project, some project’ monitor don’t work correctly
mmsgroupid is the same , that means all the instance monitored by zhe mms agent shoud to be on the same project , do i misunderstand it ? i want to start multi agent , but the lock file’s path is same and it can’t define by the cfg , so the lock file is mutually exclusive
do u have any way to resolve or i misunderstand ? help ! thanks !