Troubleshooting Autodesk Moldflow Error 99998: Exclusive Access and Analysis Failures
To fix a problem, you must understand its language. Autodesk Moldflow uses a licensing system based on FLEXlm/FlexNet (now managed by Autodesk Licensing Service). When you run a analysis, the solver requests a license feature. The 99998 error code is a generic system-level error indicating a resource deadlock, but the suffix "exclusive" points to a specific subtype.
This gives Moldflow more time to negotiate the exclusive lock over slow networks.
Error 99998: Could not check out license. Exclusive feature required.Solver error 99998: Exclusive access denied. Another instance of Moldflow may be running.License error: 99998 (Feature exclusive lock failed) - Check network connection.When to escalate to Autodesk support
Autodesk Moldflow Error 99998 is usually a symptom of the environment rather than the model itself. By moving your working directory to a local, non-synced drive and ensuring your antivirus ignores Moldflow processes, you can resolve the majority of "exclusive access" conflicts.
In the high-stakes world of injection molding simulation, where we predict the flow of plastic down to the the micron, there exists a single error code that holds a mythical, almost urban-legend status among engineers. It is the "Blue Screen of Death" for the polymer crowd. It is cryptic, stubborn, and notoriously final.
This error can occur at any stage of the analysis, from mesh generation to result processing. The ambiguity of the error message makes it challenging to diagnose the root cause, leaving users searching for answers.
Once you’ve fixed the immediate error, adopt these best practices to avoid recurrence.
Troubleshooting Autodesk Moldflow Error 99998: Exclusive Access and Analysis Failures
To fix a problem, you must understand its language. Autodesk Moldflow uses a licensing system based on FLEXlm/FlexNet (now managed by Autodesk Licensing Service). When you run a analysis, the solver requests a license feature. The 99998 error code is a generic system-level error indicating a resource deadlock, but the suffix "exclusive" points to a specific subtype.
This gives Moldflow more time to negotiate the exclusive lock over slow networks. autodesk moldflow error 99998 exclusive
Error 99998: Could not check out license. Exclusive feature required.Solver error 99998: Exclusive access denied. Another instance of Moldflow may be running.License error: 99998 (Feature exclusive lock failed) - Check network connection.When to escalate to Autodesk support
Autodesk Moldflow Error 99998 is usually a symptom of the environment rather than the model itself. By moving your working directory to a local, non-synced drive and ensuring your antivirus ignores Moldflow processes, you can resolve the majority of "exclusive access" conflicts. Error 99998: Could not check out license
In the high-stakes world of injection molding simulation, where we predict the flow of plastic down to the the micron, there exists a single error code that holds a mythical, almost urban-legend status among engineers. It is the "Blue Screen of Death" for the polymer crowd. It is cryptic, stubborn, and notoriously final.
This error can occur at any stage of the analysis, from mesh generation to result processing. The ambiguity of the error message makes it challenging to diagnose the root cause, leaving users searching for answers. When to escalate to Autodesk support Autodesk Moldflow
Once you’ve fixed the immediate error, adopt these best practices to avoid recurrence.