As of , Microsoft began rolling out a official fix for "dynamic ports" (which includes loopMIDI and rtpMIDI) through their Controlled Feature Rollout (CFR) process. Windows 11 update breaks rtpmidi and loopmidi - Facebook
If your virtual ports have suddenly disappeared or your DAW no longer recognizes loopMIDI, this guide covers the latest "patched" solutions and official workarounds. Why loopMIDI Stopped Working on Windows 11
Conflicts with specific Windows Updates, such as preview build . How to "Patch" loopMIDI Issues in 2026
While a physical "patch" file for the loopMIDI executable isn't always required, you must apply specific system-level fixes to restore functionality. 1. The Official Windows Update "Patch"