Soundtoys Plugins crashing Cubase 14 - windows 11

I’m headed over to Soundtoys next, but in the event anyone else is having this issue .
Surfing around, I’m not seeing similiar problems, so this is odd. I’ve attached the event log and chatgpts synopsis.


You now have two separate crashes caused by different Soundtoys plugins:

Plugin Exception Code Issue
Decapitator.dll c0000409 Stack buffer overrun
DevilLocDeluxe.dll c0000409 Stack buffer overrun

This indicates a broader compatibility or stability issue with your Soundtoys plugin suite on your system in the current setup.

both VST2 and VST3 versions are crashing cubase 14.

Most Likely Causes

  1. :brick: Outdated or unstable Soundtoys plugin versions
    → Especially if you’re using a June 2024 build (your timestamp: 6669b5ad) — it may not be fully compatible with Cubase 14.0.20 or your system config.
  2. :brain: Deep memory conflicts (buffer overflow) between Cubase 14 and Soundtoys plugins
    → Possibly due to certain project settings, automation states, or preset loads.
  3. :toolbox: System-level conflicts (rare)
    → CPU-specific issues, antivirus interference, or GPU-related plugin UI rendering bugs.

This is a brand new build. Windows 11 OS. All plugins and Cubase up to date.

My solve:
The only way to bypass this is to log into Cubase with the 3rd party plugins disabled. Save as a new file, remove the sound toys plugins, close out, quit cubase. load back in, and replace the plugins. It is not stable. I can get the session to export, but when I open the file, i have to repeat the process.

No, I can’t confirm this issue here with Decapitator/DevilLoc on my side but I am running on Win 10 22H2. Which Windows 11 version do you use?
I guess you have the latest Soundtoys update - have you tried to reinstall the Soundtoys suite without VST2s?
Maybe the VST2 button in the Plugin Manager is enabled and you are accidently running VST2 versions of these plugins?

I have Win 11 Pro / 24H2 and C14 and haven’t noticed any issues with either of those Soundtoys plugins or Soundtoys in general. Using VST3 versions.

Can’t say I have had any problems with Soundtoys (v5.4.1.17134) on the latest Win11 either.
It is not completely unthinkable that is is a combination of plugins in your project, some weird incompatibility with other plugins.
Is this just the one project that crashes, or does it happen with every project you work on?