Solution
The recommendation is to use the
Reset MAX Database option to remove any disconnected hardware from NI-MAX, this option is an executable accessible on the paths shown
here.
Once you've located the paths, you could use the
Terminal/Consolve.vi in your LabVIEW program to run the executable from there and reset NI-MAX. Once the reset process has completed, the disconnected/unused devices will be deleted from the database.
Take into consideration that this process will also delete other information such as DAQmx Tasks, Custom Scales, and DAQmx Global Virtual Channels, but there's always the possibility of create a
backup for all that information.