No midi over usb

[jasonahoule]

I have been using the stomp to send midi messages to a laptop to trigger sound effects and audio clips. During my bands practice last night it just stopped working. I have verified with two different laptops and multiple software that the stomp is no longer sending midi over usb. I have triple checked the config parameters and everything is as it should be, I have replaced the cable, and I even tried a factory reset. Does anyone have any other trouble shooting ideas? I am at a loss. It worked fine one song and nothing the next.

[rd2rk]

Are all of your computers Windows 11? A recent update (maybe several) caused the problem.

On one of my W11 boxes the problem was caused by a ".net Framework" update (KB5092427).

Rolling back to a restore point previous to that update and preventing Windows Update from reinstalling it fixed the problem.

On another W11 box I didn't have a similar restore point and simply uninstalling (KB5092427) didn't fix it.

On my last remaining W10 box it's not an issue, USB MIDI works fine.

[theElevators]

Check the midi channel on the stomp is selected correctly?  

[TheManx]

Was working for me fine yesterday, then not today. MIDI over the  MIDI cable was fine. All other MIDI USB controllers I have were fine. Triple checked the settings on the Helix. Using MIDI tester: https://hardwaretester.com/midi in case it was my DAW or its settings. Rebooted the PC and restarted the Helix. None of it did anything to help.

 

Until I rolled back the latest security patch from yesterday: KB5101650 

Now it works fine. (Until the next patch?)

[rd2rk]

@jasonahouleDid you ever resolve this?

[danielseb93]

Hello everyone,

I’m experiencing an issue with my Helix Floor after updating my PC to Windows 11 version 24H2. The device is recognized by the system and appears in ShowMIDI, but it does not send any MIDI data into Reaper or any other DAW.

• On Windows 10, the same Helix unit works perfectly.

• On Windows 11 24H2, the Helix is detected but no MIDI messages are transmitted.

• I have already tried reinstalling Line 6 drivers, cleaning hidden devices, resetting Helix global settings, and testing different USB ports.

• I also confirmed that I do not have the update KB5092427 installed, which some users mentioned could be related.

Has anyone found a workaround or confirmation from Line 6/Microsoft about driver compatibility with the new MIDI stack in Windows 11 24H2?

Thanks in advance for any help or insights!

[silverhead]

Another patch culprit mentioned above is KB5101650.

[rd2rk]

On 7/17/2026 at 2:46 PM, danielseb93 said:

Hello everyone,

I’m experiencing an issue with my Helix Floor after updating my PC to Windows 11 version 24H2. The device is recognized by the system and appears in ShowMIDI, but it does not send any MIDI data into Reaper or any other DAW.

• On Windows 10, the same Helix unit works perfectly.

• On Windows 11 24H2, the Helix is detected but no MIDI messages are transmitted.

• I have already tried reinstalling Line 6 drivers, cleaning hidden devices, resetting Helix global settings, and testing different USB ports.

• I also confirmed that I do not have the update KB5092427 installed, which some users mentioned could be related.

Has anyone found a workaround or confirmation from Line 6/Microsoft about driver compatibility with the new MIDI stack in Windows 11 24H2?

Thanks in advance for any help or insights!

 

See my previous post. Down load this:

 

Get Windows MIDI Services SDK Runtime and Tools - Windows MIDI Services

 

If you get a not present type message when you run it, you'll just have to keep running Windows Update and installing the updates (including the optional updates) until Microsoft gets around to sending you the correct update. No way to push it except possibly SYSTEM>RECOVERY> FIX PROBLEMS USING WINDOWS UPDATE.

IIRC, this worked on one of my machines by forcing the update. If you decide to try this, be sure to set a RESTORE POINT. It shouldn't break anything but, you know, Windows...