Cubase 12 Pro crashing (freezing) when double clicking *.cpr only

Hi All,
My Cubase 12 Pro (12.0.52) crashes (it freezes during load screen) on my Win11 machine when I open projejcts by double clicking on them in explorer. However, the same projects open fine if I select them from the “recent” section inside Cubase Steinberg HUB or launch Cubase first and then click file → open.

I don’t really use a lot of plugins so don’t think that’s the root cause (plus everything works ok if using the alternative methods mentioned abvove).

I was just wondering if anyone has experienced the same problem?

Thank you…


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.

Hi Martin, thanks for your response. Would the Cubase auto generated freeze dumps be good enough or do you need them to be specifically generated with ProcDump64?


Yes, please.

Thanks for your help. Here are the last few crash reports uploaded to Onedrive:


I have resolved the DMP files.

Please, enable WinRT MIDI Driver type in the Studio > Studio Setup > MIDI Ports Setup. All the crashes are related to the buggy old WIndows MIDI Driver type.

1 Like

Hi Martin,
I’m very happy to report that his has fixed my problem and the projects now open without Cubase freezing. I would have never figured this out on my own so massive thank you for your time and effort to help me resolve this.
I think I was messing with this option when trying to get my bluetooth MIDI controller (Xsonic Airstep) to work with Cubase.

Many thanks once again.

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Im having the same problem on a mac!!! No Support!!!


On Mac, it must be other story. Does it freeze or crash? Is there any *.crash or *.ips file created in the macOS Console Utility? You can also find the crashes here:
Mac: macOS Console utility > Crash Reports (or ~user/Library/Logs/Diagnostic Reports).

Hi Martin