Random crashes or freezes while working in Fusion

Autodesk Support

Feb 21, 2025

Products and versions covered

Issue:

Users reported that, Fusion randomly and repeatedly crashes or freezes while working in various workspaces, for example:

 

  • Trying access to McMaster-Carr online library.
  • Creating a PCB in an Electronics workspace.
  • Distributing designs (assemblies). 
  • Editing Motion Study.
  • Updating parts in an assembly.
  • Crashes in the Form space.
  • Crashes in the Manufacturing workspace.
  • Crashes when changing the default language of Autodesk Fusion.
  • After changing an assembly, for example, joints.
  • Deleting projects or drawings.
  • Saving drawings. 


One of the following occurs:

  • An error report is generated.
  • A white screen appears.
  • The program only closes from the Task Manager on Windows or Force Quit on macOS.
  • Fusion freezes and should be closed.
  • The screen grays out with a Windows message asking "Wait for the program to respond" or "Close the program".
  • A blue screen appears and the machine requires a reboot.
  • White screen in the data panel and takes time to start. 
  • The program closes unexpectedly with no error report.
  • The recovery files are almost never available.
  • Fusion suddenly crashes the computer turns up a black screen.
  • CMD prompts appear. 
  • The cursor turns into a color wheel.

Causes:

This behavior may be caused by one of the following:
  • Hardware limitations.
  • Network connectivity issues. 
  • Antivirus restriction. 
  • Possible problems with the Fusion project being worked on (corrupt assembly, drawing, or CAD model).
  • JoinerCAD add-on.
  • A memory leak or similar issue from faulty or incorrectly installed RAM chips. 
  • A corrupted Windows or macOS User Profile. 

Solution:

Submit the error report for further investigation (see Error Reporting)

  1. Enter the email address.
  2. Provide a step-by-step description of the workflow that resulted in the crash.
  3. Send the report.
  4. Note the CER reference number after submitting the report.
  5. Contact Support if on a Commercial or Start-up subscription.
Fusion Error Report
 

 

General recommendations that can improve behavior

 

Make sure that a dedicated graphics card is in use (Windows)

  1. Click the Help option (question mark icon in the top-right corner of the Fusion window).
  2. Choose Support and Diagnostics.
  3. Go to Graphics Diagnostics.
Access graphics diagnostic
  1. If the integrated card is on, follow the steps from this article: How to configure Autodesk software to use high performance graphics.

 

Confirm that no network connectivity prevents Fusion from working correctly

 

If Fusion crashes or freezes while working on a particular project

 

Perform a clean uninstall and reinstall, repair, or reset of Fusion

 

Reinstall or replace Random Access Memory (RAM)

  • Test Random Access Memory (RAM) with a test such as MemTest86.
  • Reinstall or replace RAM if a Memory test determines it is not performing optimally. 

 

Try restarting the computer

If the computer has been running for a longer time, try to save a design and restart the computer.

Check for Fusion updates

Refer to How to update Autodesk Fusion.

 
Note: For issues opening or launching Fusion, see: Fusion does not start.

Products:

Fusion;

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