Autodesk Moldflow Error 99998 __full__ Full May 2026

Step 1: Understand Error 99998 “Full”

In Moldflow, Error 99998 is a general “solver failed” error.
“Full” often means the analysis stopped because of a full disk, full memory, or full license error — or the solver output exceeded a limit.

Common causes:

• Insufficient disk space for result files
• Out of RAM (large model)
• Too many elements for your license tier (e.g., “Full” means maximum mesh count reached for that license)
• Corrupted study or mesh
• Invalid boundary conditions

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2. Common Causes & Solutions

4. Summary

| Most Likely Cause | Solution | | :--- | :--- | | Bad Mesh | Fix Aspect Ratios (>30) and Intersections. | | Mismatched Physics | Lower injection speed; check Temp settings. | | Corrupt Material | Switch to a different material source. | | 3D Transition | Ensure minimum 4-6 layers through thickness. |

The Verdict: Error 99998 is almost always a Mesh Geometry issue.

Autodesk Moldflow Error 99998 generally indicates that the solver cannot access a required license. This can occur if all licenses are currently in use, the license has expired, or the software cannot communicate with the license server.  Common Causes 

License Availability: All AMI_STANDARD, PREMIUM, or ULTIMATE seats are occupied. autodesk moldflow error 99998 full

Server Communication: The license server is down, or firewall ports (e.g., TCP 44100/44200 for 2023) are blocked.

Configuration Issues: The licpath.lic file contains the wrong server name or IP address.

Installation Errors: An incorrect product key was used, or the License Configuration tool hasn't been run.

System Time: There is a significant time/date discrepancy between the client and the server.  Step-by-Step Troubleshooting  Check License Status Open LMTools on your server.

Navigate to the Server Status tab and click Perform Status Inquiry. Step 1: Understand Error 99998 “Full” In Moldflow,

Verify if your solver licenses (MFIA, MFIB, or MFIP) are listed and if any seats are available. Clear Rogue Processes

If licenses appear "in use" but no jobs are running, open Task Manager.

End any instances of flow.exe, cool.exe, warp.exe, or mhb3d.exe that are at 0% CPU. Restart the adskscm (Simulation Compute Manager) service. Run License Configuration Utility

Go to Windows Start Menu > Autodesk Moldflow Insight 202x > License Configuration 202x.

Ensure the "Network License" is selected and the server hostname is correct (use port@server if using a custom port). Set Environment Variables Insufficient disk space for result files Out of

If requests are timing out, create a system variable named FLEXLM_TIMEOUT with a value of 10000000 (10 million) to give the server more time to respond.

Ensure ADSKFLEX_LICENSE_FILE is correctly set in your system variables. Verify Firewall Ports

Ensure the following TCP ports are open based on your version: 2023: 44100, 44200 2021: 43100, 43200 2017-2019: 43911, 42911, 43921 

For more detailed technical solutions specific to Linux or Cloud environments, visit the Autodesk Support Page. 

Are you running this analysis on a local machine or a remote solver? 

2. Check File Path and Name Rules

• Move your project to a short path: e.g., D:\Moldflow_Projects\
• Ensure the path contains no spaces (replace spaces with underscores) and no special characters.
• Ensure the study name is less than 50 characters.

Definitive Solutions to Resolve Error 99998

Here are the step-by-step fixes, ordered from most likely to least likely to work.

A. Mesh Quality (The #1 Culprit)

The most common cause is poor mesh quality, specifically high aspect ratio elements or overlapping elements.

• The Issue: If a tetrahedral element becomes too "flat" (high aspect ratio), the solver attempts to calculate flow through a volume that mathematically approaches zero. This causes a mathematical singularity, crashing the solver.
• The Fix:
  1. Run the Mesh Statistics tool. Look for:
     • Aspect Ratio: If the maximum is > 50 (or even > 30 in complex parts), this is likely the cause.
     • Match Ratio: For Dual Domain/Dual analysis, if the match ratio is below 85-90%, the solver may crash when trying to link elements across the thickness.
  2. Use the Mesh Repair Wizard to automatically fix high aspect ratios.
  3. Check for Overlapping Elements or Intersection errors in the mesh logs.

C. Material Data Corruption

• The Issue: Sometimes the specific material database file (*.udb) has a data glitch (e.g., a missing viscosity point at a specific shear rate).
• The Fix:
  • Change the material to a generic one (e.g., Generic PA66) and try running. If it works, your specific material database is corrupt. Re-download or select a different manufacturer for the same material.