CB15 freezes om Midi Initialisation

Cubase
, ,
1

Hi!

I have suddenly started to have issues in both CB 14 and CB 15 during startup, they freeze on Midi Initialisation.

I am on Win 11 and I have had no issues before.

I had an Win 11 update yesterday and after that the problems started.
So I began to wonder if it may have to do with Windows new updates for Midi 2.0.
But according to the MS MidiChechService tool the Midi 2.0 implementation seems to be ok.

Is there anyone out there that can have a look at the dmp files to see what is going on, please!?

Regards
/Hackej

Cubase 15.0.10 64bit 2026.2.26 13.34.27.084-freezedump.dmp (1.6 MB)

Cubase 14.0.41 64bit 2026.2.26 9.28.46.197-freezedump.dmp (894.1 KB)

Cubase 15.0.10 64bit 2026.2.26 9.26.43.813-freezedump.dmp (824.2 KB)

Cubase 15.0.10 64bit 2026.2.26 9.16.36.807-freezedump.dmp (953.6 KB)

2

The crash is in the wdmaud2.drv driver, that seems to come with the Midi update.

image
image848×294 10 KB

So I guess you need to uninstall the update you have received yesterday, but for sure this is something @Psychlist1972 can answer.

3

Hi!

Thank you very much, I had a feeling it might be connected to that.
Should have waited some time before updating.

I will try to uninstall the update and see if things works better.

/Hackej

4

I had a similar issue with a new build 2 days ago. What midi devices are you using and were you using MidiRT by any chance? if so you can revert back to the default windows midi as midi 2.0 seems to be better. Aslo if you are running RT you need to check ‘system time stamp’ as well now.

M

5

Hi!

I have a Motu 828ES and a Focusrite Clarett PreX with Midi connections, but I am currently primarily using my old ESI M8UXL midi interface.
Not using Midi RT due to the ESI being a bit old.

I have uninstalled the update and will see if it works better now.

/Hackej

6

Are you using our in-box MIDI driver, or the ESI driver?

If the latter, have you tried with our in-box MIDI driver? Most third-party drivers are no longer necessary (for class-compliant MIDI devices) because everything in the new MIDI stack is multi-client.

Pete
Microsoft

7

Hi!

I think I am using an old ESI driver that has worked okay but will check more tomorrow and try the in-box drivers.

Un-installing the latest update did not change anything, CB works directly after boot but after restarting CB it freezes.

/Hackej