D5 crashes immediately when Windows file save dialog opens (RTX 5080 / Windows 11)

Hello D5 Team,

I’m experiencing a critical issue where D5 crashes instantly whenever the Windows file save dialog opens, making it impossible to save renders or any files.

Symptoms

  • As soon as the Windows file explorer / save dialog appears, D5 freezes briefly
  • The dialog becomes unclickable
  • D5 then closes automatically
  • This happens before saving, regardless of render settings
  • The issue occurs 100% of the time
  • It affects all projects, including new empty scenes

At this point, I cannot save any files at all because the crash is triggered solely by opening the file dialog.


System Information

  • OS: Windows 11 (latest updates installed)
  • GPU: NVIDIA RTX 5080
  • GPU Driver: Latest NVIDIA driver
  • D5 Version: Latest version
  • This is not project-specific

What I’ve Already Tried

  • Restarting Windows (multiple times)
  • Reinstalling / updating GPU drivers
  • Switching GPU performance settings (Windows Graphics Settings → High Performance)
  • Disabling Explorer previews and thumbnails
  • Forcing legacy file dialogs via Windows registry
  • Disabling overlays (NVIDIA Overlay, Xbox Game Bar, etc.)
  • The crash still happens the moment the file save dialog opens

Conclusion

This appears to be a system-level conflict between D5, Windows 11’s file save dialog, and NVIDIA RTX 50-series drivers, rather than a project or user configuration issue.

At the moment, this issue completely blocks any workflow, since saving files is not possible.

I would appreciate guidance, confirmation of a known issue, or any workaround from the team.

Thank you for your support.

A post was merged into an existing topic: [Hot Issue]D5 Crashes when “Save As” or “Save” is used (opening the file explorer)—Qt window conflicts with other DLLs