Moldflow generates massive temporary files (scratch files) during calculations. If the drive is full or the temporary folder is cluttered, the solver fails. Navigate to your project's temporary storage folder. Close Moldflow entirely. Delete all files in the %TEMP% directory.
By systematically addressing these areas, you can clear Error 99998 and get your injection molding simulations back on track. To help you fix this specifically, tell me: Your and available disk space .
Run the "Mesh Repair Wizard" to eliminate overlaps, intersections, and free edges. autodesk moldflow error 99998 full
Anti-virus software or lack of administrative rights blocking the temporary scratch files. Step-by-Step Troubleshooting Solutions 1. Check Your Hardware Resources
Open Windows Task Manager during the "Meshing" and "Filling" phases. If RAM usage hits 90-95%, the OS may kill the Moldflow process, triggering Error 99998. Close Moldflow entirely
Extreme aspect ratios or overlapping elements causing mathematical singularities.
Error 99998 is a generic "Internal Solver Error." Unlike specific error codes that point directly to a missing material property or a disconnected gate, 99998 is a catch-all signal that the solver has crashed or been forced to stop by the operating system. It essentially means the simulation engine encountered a condition it didn't know how to handle. Common Root Causes To help you fix this specifically, tell me:
Ensure the drive containing your temporary folder has at least 50GB of free space for large 3D models. 3. Optimize the Mesh
Ensure the C:\Program Files\Autodesk\Moldflow Insight [Version] folder is white-listed. 5. Reset the Simulation Job Manager Sometimes the error isn't in the model, but in the queue. Open the . Cancel all "Hung" or "Failed" jobs.