Autodesk Moldflow Error 99998 Best May 2026

If the error persists on a specific project, the project files themselves might be corrupted.

☑ Start with RAM/Disk space first, then move to Licensing , and finally Mesh Repair . To help you find the exact fix, could you tell me: At what percentage does the simulation fail?

Ensure you have a stable VPN or LAN connection if using a network license. autodesk moldflow error 99998 best

Follow these steps to resolve Error 99998 and get your simulation back on track. 1. Check System Resources and Memory

A "bad" mesh can cause the solver equations to diverge, leading to an immediate crash. If the error persists on a specific project,

Remove tiny fillets, logos, or cosmetic textures that create hyper-dense mesh clusters.

Delete files in your %TEMP% folder to ensure the solver has enough "scratch" space. Ensure you have a stable VPN or LAN

Run the "Mesh Repair Wizard" to find overlapping elements or zero-area faces.

If the solver loses its connection to the license server for even a second, it will abort with this code.