You wisely installed your massive EZD3 MIDI and sound libraries on an external SSD to save space. But today, you plugged it into a different USB port, and now—no MIDI library.
: If you moved your files to an external drive, launch the standalone version of EZdrummer 3. It may prompt you to browse for the new location. Alternatively, check Settings to ensure the path matches your actual folder. 3. Clear Registry Errors (Windows Only) ezdrummer 3 no midi library found