Right-click each rogue file and choose to immediately return those seats to the license pool. 3. Implement the FLEXLM_TIMEOUT System Variable

Autodesk Moldflow Error 99998 is a critical "Solver Abort" message. It indicates that the analysis engine has encountered a fatal mathematical instability or data inconsistency that prevents the simulation from continuing. Unlike specific warnings (e.g., "Element too thin"), the 99998 code is a generic crash code often accompanied by the message: "Solver aborted due to unknown error."

If none of the above works, the study file itself might be corrupted. Export your mesh as a .udm or .pat file. Create a brand-new Moldflow project. Import the mesh into a fresh study. Re-apply your injection points and process settings. Launch the analysis.

Go to the tab and click Perform Status Enquiry .

Check Task Manager. If memory usage hits 90%+, the solver may trigger a 99998 crash.

Increase your Windows Paging File size to at least 2x your physical RAM. 2. Verify Licensing and Connectivity

Contact Autodesk support with:

utility on your license server to perform a "Status Inquiry". Confirm that the Insight solver licenses (e.g., ) are listed and not fully in use by other team members. Restart the Simulation Compute Manager (SCM)

Check if your material UDB file is corrupted. Try running the simulation with a "generic" material from the Moldflow library; if it works, the issue lies in your custom material data.