Ableton Forum

OMG! Its fixed with 12.1!!

THX a lot!

it's fixed by uninstall -> restart -> Install

reinstalled everything no change.

Also all MAP API / Learn Examples that are using Devices / Track / Clip Object not working

live.this device returns no id, or live.path return nothing also the factory examples are not working.

Audio is running, other M4L stuff is running audio / midi routing.

Windows latest version, Live 12.1

Any advice?

I just realised this could explain the same type of crash I've been experiencing for at least 2 years now... in devices where the mute property is indeed observed.
My workaround has been to edit those devices in Max standalone instead.


Ok that’s a workaround for edit, but should I always ...

Thanks also for the confirmation. As described here, all you have to do is deactivate the connections to the two observers and nothing will crash anymore.

Yes but that doesn't necessarily proves that the observers themselves are responsible for the crash, it can be what's processing their ...

Thanks for PMing the set.
It does crash on close, indeed. That's a serious issue.
I'll try to reduce the problem to the smallest patch possible and pass it to support.


Thanks also for the confirmation. As described here, all you have to do is deactivate the connections to the two observers ...

Posting the code would not help. The code is from official device template and very straight forward only Using the observer. The context is the difference if you use the these observer on a track it works on a chain it crashes. The Ableton and M4L team received all needed files with my reporting ...

Live 12.0.5 still crashing. Same bad issues after crash. Computer restart needed.

Good that the Ableton Team and M4L team is "aware of this bug"

As example: Spire (lates version) WIN VST3 64 bit. It works in other DAW in "realtime" you can "play" with preset change like playing on a keyboard. Tested with 4-5 different VST3 Hosts. It seams its only Ableton Live. It was also slow in Live 11 but its now a bit slower.

I think that's to much ...

Yes, think that an feature request since decades. Like VST3 program Change / Parameteres etc.

If you want to do that you need a workaroud like:

dedicated device on separate track and a master

and send the data from the master to the devices via

send / receive (timing not the best!)
mapping a ...

Live 12 still crashing!!!

Only one m4l device used. Crash! Ableton said that they aware of this. Then: When you are not willing to resolve this bug. Remove it from your description! So bad, very bad!

I've developed a nice (in my opinion) M4L FM Synth. In the past i used it only for me! Now i invest a lot of time to make it usable for others! I tried to post that in some FB groups but no chance to to break the review by admin gate, Is there any free platform where i can post my device or work ...

Sorry, it’s 0x90 (hexadecimal) = 144 Note on and 0x80 is 128 Note off.

you cant send a Note on with velocity 0. It will be changed to a note off.

I have some gear that needs Note On with velocity 0. I understand that makenote or similar functions will translate 90 0 0 to 80 0 40, But the midiout which is described as "outputs RAW midi data" should do the but it translates it also. So, ok, its not possible because of existing devices. But a ...