Cubase Pro 12 Freeze on Startup

Hi all,

Certain projects of mine freeze while I’m working on them, and after reboot will stay in a frozen state. This seems to happen on projects with quite some audio tracks and a medium amount of plugins.

The freeze seems to happen most often after creating a new audio track. I recall having one similar project like this when I was on Cubase 11.

I’ve tried creating a new .cpr file and importing all the tracks over to the new project, but the issue persists in that new project file as well. This made me think it had something to do with the audio I was importing from the Mediabay - I read in another post it might be due to external hard drives failing, so I ported my entire SFX library to an internal drive, but the issue still persists.

Does anyone know what could be the issue here?


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.

Certainly, thanks


Reported to Steinberg. Thank you.