Error 99998 is a . It essentially means: "The solver encountered a critical problem and could not continue, but the exact reason is not captured by a dedicated error code."
If no solution works, gather:
| Step | Action | |------|--------| | 1 | Restart your computer (clears memory fragmentation). | | 2 | Increase Windows pagefile to at least 48 GB. | | 3 | Change Moldflow temp folder to C:\MFtemp (short path). | | 4 | Create a new project and import only the failing study. | | 5 | Run full mesh diagnostics and fix any reported errors. | | 6 | Disable antivirus real-time scanning temporarily. | | 7 | Repair Moldflow installation. | | 8 | If still failing, reduce model complexity (coarser mesh or 2.5D analysis). | autodesk moldflow error 99998