Some midi drivers can only be use by one application at a time and do not support multi-client.

When the Automap Server loads, it will start to use any midi driver that is selected, if 'All' is selected as the Midi Input Port, then some of these midi drivers may not work in your DAW.

Therefore ensure Midi Input Port and Midi Output Port is set to either 'Off' or 'Automap Midi' accordingly.

All Novation midi drivers are multi-client supported, hence can be used in multiple applications.