Hope you’re right
And please forgive my numerous answers , I’m new on mac and keyboard is very sensible , it sent messages before I would 
haha happens. no issues
Hi,
This is a known and already reported issue, thank you. Please see:
Expression Maps in Cubase 15 not sending output after external trigger
Cubase 15.0.6 has just been released ,and the bug is stil there ….
Hi,
This has not been scheduled for the 15.0.6 hotfix.
Hi Martin , thanks for answering and sorry I did not say Hello 
This is really annoying Hope it will be fixed before C16 ! 
I cannot even realise this has not been corrected …!
Hi,
I feel your pain.
This is going to be fixed in the upcoming maintenance update. 
Thanks I hope you’re right 
I have a temporary solution for this! At least it works for me.
In the upper right corner of the Expression Map Setup window (when you have selected an existing expression map), toggle the Remote trigger mode back and forth.
For example. I use the PC (Program Change) mode. When the problem of the above topic happens, I select Key Switch and make sure “Latch Mode” is on, and then go back to PC mode. I think the reverse will work too.
This is by no means great, but it gets rid of the problem in the session, until an update fixes it.
Cheers!
Thanks for you help Samuel , Unfortunately it doesn’t work better than toggling from « opus 01 » to « no map » directly in the inspector from the arrangement window.
It fixes the issue temporarily until recording again on the same track ; and then I have to do it over.
Strangely , when reopening a saved project , with deferents midi parts recorded on multi tracks ,multi midi parts on same tracks and with key splits ( toggled back and forth for key splits to work correctly everywhere ) , the it works perfectly fine…. Until recording again
We will have to wait Steinberg to fix it correctly.
Anyway, thanks again for your appreciated help
Cheers
After the release of 15.0.10 they haven’t fixed the issue for me. I still have the problem that after I triggered a keyswitch (pizzicato) with my streamdeck and have a different articulation played at the beginning (e.g spiccato) the playback still plays the last articulation (pizzicato) I used. Can more people confirm this?
Hi,
What kind of MIDI Message does it send? Does it send MIDI Note or Program Change?
It sends Midi note.
I tested it in Cuabse 14 Pro and it worked without an issue. This issue occurs on Cubase 15 Pro.
Hi,
I guess, that Streamdeck sends just MIDI Note On, right?
Could you try, what happens, if you send the given MIDI Note from a regular MIDI Keyboard, please?
Hi Martin,
It works with a regular midi keyboard. It sends Note on.
Hi,
OK, interesting to know. I will try to emulate this.
Thank you for the details!
Hi.
Thank you!
Hello guys
The update only partially fixed the bug for me
Let me explain: if the instrument’s key split preset isn’t configured and loaded into the expression map BEFORE recording a MIDI sequence, it’s no longer possible to retrieve the key splits and articulations in the editor, and the sound played will be the default one.
Before the fix, deleting and then reloading the expression map in the track inspector would make the sound breaks reappear; or by toggling the trigger as Samuel suggested earlier. Now this no longer works for me, and if I forget to load the expression map before recording, I have to start over. It’s a shame and it’s frustrating; it breaks the spontaneity and musical flow.
I find that the fix took a very long time to arrive and it doesn’t work as it should; I’m disappointed.
The bug is still there for me, too… I use MetaGrid Pro for switching articulations
Edit: this seems to be the solution: https://forums.steinberg.net/t/cubase-15-expression-maps-a-fix-for-software-articulation-trigger-unreliability/
It turned out that I hadn’t assigned a Note Off event to the macro