Cubase Freeze no playback after importing midi stems

Hello everyone.
I’m hoping someone has experienced this but more important has found a way around it because it is such a hassle to have to live with. Relevant specs below.

-My current issue is pretty simple to describe. I work from a template I’ve created. It’s quite large. worth mentioning if it has any relevance. Using various kontakt 6 and kontakt 6 player libraries. I believe I’ve had the upcoming issue when all of these and any others are “disabled” meaning out of processing completely disconnected.

-When I go to load in midi stems provided by the client, sometimes many, sometimes just one, it loads into a new midi track without connecting to any VSTi.

-If I press play to roll the session it will play, the timeline curser bar will stop moving but the song will continue to play and never stop. I’ve left it for over an hour before on a 3 min song and it just keeps running. Cant move the timeline, stop playback with anything including hardware controllers. NOTHING. The only way to stop is to end task in task manager.

-Upon booting back up it gives the window for booting in safe mode blah blah blah, and also says the reason for improper shutdown was “freeze.” I tried to analyze the crash log but its a bit over my head. Sometimes the logs will just point to kontakt directly on other crash related issues and I at least know its that but this specific problem doesn’t point to what I can see as a definitive plugin/software.

-This has happened enough times that I now know it is 100% going to happen after I press play right after I’ve imported MIDI files. Doesn’t matter if I’ve relocated them to other tracks or plaecs in the timeline.
-Yes, Im using the midi import function and not drag and dropping from a folder.

Anyone experience this? Im not a coding or software developing guru so I really have no idea but it’s like whenever midi is initialized on freshly imported tracks it just flips out on playback.


Could you please use Microsoft ProcDump to create a DMP file?

Generate a DMP file and share it via Dropbox or similar service, please.

Use Microsoft ProcDump utility to generate a DMP file, please.

  1. Please download ProcDump64 from Microsoft (~650kB) and extract the archive to a local folder on your harddisk.

  2. Run Command Prompt (cmd) as administrator (right click and select “run as administrator”)

  3. Navigate (in the Command Prompt) to the folder with the extracted procdump file.
    For example:
    cd C:\ Users \ \ Downloads \ Procdump
    Note: the dmp file will be written into that folder.

  4. Launch Cubase/Nuendo. You can work as usual. At any time, change to the command prompt and start procdump, to monitor Cubase/Nuendo for unexpected behavior (see next step).

  5. Launch procdump64 via Command Prompt:
    Cubase 12:
    procdump64 -e -h -t Cubase12

Nuendo 12:
procdump64 -e -h -t Nuendo12

The -h option will write a dmp file in case of an application hang. This might kick in too early sometimes, in case some action takes a little longer. Feel free to skip the “-h” option, if you are only up for fetching crashes.
The option -e will catch exeptions and the option -t terminations of the application.

  1. Prodump is now monitoring the Cubase/Nuendo process and will write a crash log, in case Cubase/Nuendo crashes or hangs. Perform the action that causes Cubase/Nuendo to crash and send us the generated crash dmp.

ZIP and share the DMP file via Dropbox or similar service, please.