Ansyswbuexe Encountered A Problem A Diagnostic File Has Been Written New 2021 May 2026

Troubleshooting the "ansyswbuexe encountered a problem" Error in ANSYS Workbench

Abstract

This document addresses the common but critical error encountered during the initialization of ANSYS Workbench: "ansyswbuexe encountered a problem. A diagnostic file has been written." This error typically indicates a failure in the Workbench Framework to initialize the graphical user interface (GUI) or load necessary preference configurations. This paper outlines the primary causes—ranging from corrupt user profiles to graphics driver conflicts—and provides a step-by-step remediation procedure. Symptoms: Random crashes or blocked writes; AV quarantines

Open Windows Explorer and type %appdata% in the address bar. Verify license server is reachable and not overloaded;

  • Symptoms: Random crashes or blocked writes; AV quarantines components; permission errors in logs.
  • Fixes:

    The error message "ansyswbu.exe encountered a problem. A diagnostic file has been written" Symptoms: Random crashes or blocked writes

    d. Mixed Precision or GPU Incompatibility

    If GPU acceleration (via NVIDIA CUDA or OpenCL) is enabled, and the GPU drivers are mismatched, memory on the device can become corrupted. The solver will eventually try to copy results back to host memory, encounter a parity error, and abort.

    When to Contact ANSYS Support (And What to Send)

    If none of the above works, it is time to open a support ticket. To get a fast resolution, do not just say “I get a diagnostic file error.” Instead, provide:

    • Verify license server is reachable and not overloaded; use ANSYSLMD_TRACE and license daemon logs if needed.
    • Check environment variables ANSYSLMD_LICENSE_FILE or ANSYSLIC_DIR for correct entries.
    • Temporarily run Workbench with license manager on local machine if permitted to isolate network issues.