Disclaimer: The information above is based on Autodesk support documentation available in 2025-2026.
Run the . Look for elements with an aspect ratio greater than 50:1 for Dual Domain meshes, or 100:1 for 3D meshes.
Elements that intersect or occupy the same space confuse the solver matrix. autodesk moldflow error 99998
What (e.g., Flow, Cool, Warp) were you running when it crashed?
Delete all temporary files associated with Autodesk or Moldflow. Disclaimer: The information above is based on Autodesk
Remember: Moldflow is telling you that it failed outside of its own error-handling logic. Listen to what your operating system is doing at the moment of failure. Use Windows Event Viewer (look for "Application Error" or "Faulting module name") to pinpoint the exact system-level crash. Armed with this guide, Error 99998 will no longer be a showstopper but a solvable puzzle.
Insufficient RAM or lack of temporary hard drive space during large 3D mesh computations. Elements that intersect or occupy the same space
Revert process settings to the default "Automatic" or material-recommended baselines to determine if extreme physics caused the crash. 4. Software, Licensing, and IT Infrastructure
It tells you that your simulated molding process is physically unstable. Instead of forcing the solver, treat it like a real molding problem:
Adjust solver controls