When using the Remote USB Debugging plugin, consider the following.
Do not move a tool from a remote machine to the host machine while MPLAB® X IDE is running.
Limitations
Mapping multiple instances of MPLAB® X IDE, running on one or more hosts, to the same remote server will result in hot-plug notifications only being detected by one of the MPLAB X IDE instances. There must be a one-to-one association of an IDE instance with a remote server in order to properly receive hot-plug notifications from devices attached to that server.
Figure 1: Host with Two IDEs, One Remote
Figure 2: Host with Two IDEs, Two Remotes
Figure 3: Two Hosts with IDEs, One Remote
Figure 4: Two Hosts with IDEs, Two Remotes