Midi Output doesn't work

General Feedback & Requests
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1

I try to send MIDI from Unreal Engine but it doesn’t work.

I always got a error message when I use “Send Midi control change”
When I’m using “find all midi devices” I don’t get any result.

Do I miss a parameter, a plugin to install … ?
I try with UE5 and it’s working !

Thanks for your help
Julien

2

What error message are you getting? Also, have you tried using “Find Midi devices” instead of “Find all midi device info”? That should bring up a list of all inputs and outputs to choose from. You’ll have to narrow down which one is the correct one but it’s at least a starting point.

3

It’s working fine with “Find Midi devices” > I see input and output. Input is working fine. I don’t get any result with “Find All Midi devices”

The error message is : “Blueprint Runtime Error: “Accessed None trying to read property MidiOutput”. Blueprint: BP_MIDI Function: Execute Ubergraph BP MIDI Graph: EventGraph Node: Send MIDIControl Change”

I don’t have a real midi controler but a stream deck using loopmidi software to open port. You can see an example at this address : 24- Utiliser un Stream Deck avec Unreal Engine - YouTube

Thanks for your answer

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4

I have the same problem, doesnt work in 4.27, but it did in previous versions and also in 5.

5

Confirming on my end that Midi Output does not work in 4.27.

I do not get any errors; however, there’s something going on that prevents actual data to be sent from UE4 out to the assigned device.

Works perfectly fine in 5.1.

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