ansyswbu.exe encountered a problem. a diagnostic file has been written

Ansyswbu.exe Encountered A Problem. A Diagnostic File Has Been Written [2021] -

: Open Windows Explorer and navigate to %APPDATA%\Ansys\vXX.X\ (replace vXX.X with your specific version number, such as v261 ).

: If your GPU struggles with standard hardware acceleration, force Workbench to utilize legacy rendering pipelines. Open Workbench, navigate to Tools →right arrow Options →right arrow

Type %temp% in the Explorer address bar and rename the .ansys folder to .ansys_old . Relaunch Workbench and try to open Mechanical again.

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. : Open Windows Explorer and navigate to %APPDATA%\Ansys\vXX

This error is frustrating because it’s generic, but 90% of the time it’s . Switching to software rendering (Fix #2) gets most people back to work in minutes.

Restart Workbench; the software will regenerate these folders with default settings. 2. Update and Configure Graphics Drivers

When this executable fails, the Workbench interface usually closes abruptly, often taking your unsaved project data with it. Relaunch Workbench and try to open Mechanical again

For project-specific issues:

Disclaimer: The information provided in this article is for general informational purposes only and is based on publicly available user reports and technical documentation. The most effective solution for your specific situation may vary. Always consult the official ANSYS documentation and support channels for the most up-to-date and authoritative guidance.

Because AnsysWBU.exe drives the hardware-accelerated 3D viewport, a driver mismatch or a multi-GPU conflict will result in an immediate crash. ANSYS Workbench mesh crashes (ANSYSWBU.exe problem) If you share with third parties, their policies apply

: Open a fresh instance of ANSYS Workbench. Create a new Mechanical component system, right-click the Model cell, select Import Mechanical Database , and target the recovered .mechdb file.

| Keyword | Meaning | |---------|---------| | EXCEPTION_ACCESS_VIOLATION | Memory access issue (often hardware or driver related) | | STACK_OVERFLOW | Infinite recursion or very deep command calls | | Out of memory | Insufficient RAM or virtual memory | | Failed to load DLL | Missing or corrupted dependency | | Graphics driver | GPU-related failure | | Corrupt project file | Issue with .wbpj or .mechdb file |

By default, ANSYS writes diagnostic files to your Windows temporary folder: