Troubleshooting loopMIDI on Windows 11: Fixes and the New MIDI 2.0 Patch
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button to add as many virtual cables as you need, and name them clearly (e.g., "DAW to Synth"). Link Your Software:
When Windows 11 was released in October 2021, early adopters quickly noticed that loopMIDI (version 1.0.16.21 and earlier) either failed to install or installed but crashed upon port creation.
KMODE_EXCEPTION_NOT_HANDLEDRecent Windows 11 updates, particularly the rollout of Windows MIDI Services (incorporating MIDI 2.0), have caused compatibility issues with third-party virtual drivers like loopMIDI. Users have reported that loopMIDI ports often become invisible or "grayed out" in DAWs like Ableton, Studio One, and Cubase. Why loopMIDI Broke in 2026
, which can function similarly to loopMIDI without third-party drivers. Steinberg Forums Immediate Workaround for "Hidden" Ports
Limit Port Count: Use only as many ports as necessary (typically 1–4) to reduce CPU overhead.