Autodesk Moldflow Error 99998 is a critical licensing issue that occurs when the software cannot verify or access the required license to run a simulation. This error effectively halts the analysis process, displaying a message such as: "Required license for AMI_STANDARD, AMI_PREMIUM or AMI_ULTIMATE is not available, or all licenses are currently in use". Common Causes of Error 99998
The primary reason for this error is a disconnect between the Moldflow Insight solver and the Autodesk license server. Specific triggers include:
License Unavailability: All available seats are currently in use by other team members, or the subscription has simply expired.
Incorrect License Configuration: The solver (Insight) may not be correctly pointed to the license server, or the wrong license level (Standard vs. Ultimate) is selected in the settings.
Server Communication Issues: The license server may be down, or network latency/VPN issues are preventing the client from reaching the server in time.
Product Key Mismatch: During installation, using the wrong product key can lead to a mismatch between the UI (Synergy) and the solver (Insight), which require separate keys.
Time Synchronization: A large clock difference between the client machine and the license server can cause the security check to fail. Step-by-Step Troubleshooting Guide 1. Verify License Configuration (Moldflow 2023 and Newer)
For recent versions, Autodesk provides a dedicated utility to manage these settings. Close all Moldflow instances.
Open the Windows Start Menu and find the Autodesk Moldflow Insight 202x folder. Launch the License Configuration 202x utility.
Ensure the License Mode (e.g., Network) and License Level (Standard, Premium, or Ultimate) match your subscription.
Confirm the Server Name is correct. If the name isn't working, try using the server's static IP address. Click Apply and restart the software. 2. Check Server Status with LMTools
If the configuration is correct but the error persists, the issue may be on the server side. On the license server, open LMTools.
Go to the Server Status tab and click Perform Status Inquiry.
Check the log for the Insight solver features (e.g., MFIA, MFIB, MFIP). If they are missing or shown as expired, you must update your license file via your Autodesk Account. 3. Clear Rogue Solver Tasks
Sometimes, a previously crashed simulation may still be "holding" a license in the background. Open Windows Task Manager.
Look for processes named flow.exe, cool.exe, warp.exe, or mhb3d.exe.
End these tasks to manually release the licenses back to the server. 4. Resolve Linux-Specific Issues
For users running Insight on Linux, ensure that environmental variables like ADSK_SERVICE_ADDRESS are correctly set in the ami20XX or mfclient.env files. You can also use the AdskLicensingInstHelper tool to list and verify registered products.
"Moldflow 2023 이상에서 해석을 시작할 때 """"오류 99998 autodesk moldflow error 99998
Error 99998 Autodesk Moldflow is primarily a licensing failure, an interesting "feature" or unique behavior associated with it is how it triggers automatically during complex child-job processes Design of Experiment (DOE) or optimization analyses. The "Silent" Job Limit Behavior
In many cases, your primary analysis (the "parent" job) may start perfectly fine because a license is available. However, because DOE analyses spawn multiple child jobs
to test different variables, the software may hit a "hidden" parallel solve limit. The Symptom:
You might see Error 99998 appearing in the middle of a run, even if your initial license check passed. The Cause:
The system attempts to check out additional licenses for the parallel solvers; if they are already in use by other team members or blocked by server settings, the child jobs will fail immediately with this specific error code. Common Triggers for Error 99998
Beyond DOE job limits, this error frequently occurs due to specific configuration quirks: Missing Insight Solver: A common mistake is entering the product key for (the user interface) during the installation of
(the solver). Since they require separate keys, the solver will fail to run even if the interface looks normal. SCM Communication Failures: In newer versions (2023+), the error is often tied to the Simulation Compute Manager (SCM)
. If SCM isn't correctly communicating with the license server, it defaults to a 99998 error regardless of actual license availability. The Linux Configuration Package:
For Linux users, simply having the license server running isn't enough; you must specifically install the Moldflow Insight License Configuration package
as a separate step to bridge the solver to the license service. Quick Fixes
If you are seeing this error, the most effective first steps according to Autodesk Support Run License Configuration: Navigate to the Windows Start Menu > Autodesk Moldflow Insight 202x License Configuration
and verify the server hostname and license level (Standard, Premium, or Ultimate) are set correctly. Check LMTools: Ensure the Insight solver feature (e.g., ) is actually listed in your license file. Set a Timeout Variable:
If your server is slow, creating a system environment variable named FLEXLM_TIMEOUT with a value of
(10 million) can prevent the solver from giving up too early. Are you currently seeing this error during a or at the very start of a fresh simulation
The Case of the Phantom Partition
It was 2:00 AM on a Tuesday, and the coffee in the breakroom had long since turned into a sludge resembling the amorphous polymer Eduardo was trying to simulate.
Eduardo stared at his dual monitors. On the left, the assembly file for the 'Aero-Spacer'—a complex, thin-walled aerospace component. On the right, the Autodesk Moldflow Insight analysis log. Or rather, the abrupt, crushing end of it.
The simulation had run for four hours. It had navigated the intricate gating system, filled the cavity perfectly, and began the packing phase. Then, exactly at 99% completion, the progress bar froze. A heartbeat later, the dreaded dialog box popped up: Autodesk Moldflow Error 99998 is a critical licensing
Error Code: 99998
Eduardo groaned, the sound echoing in the empty office. In the world of injection molding simulation, error codes were usually specific. "Element 452 is intersecting." "Injection time too short." But 99998? That was the "General Unspecified Fatal Error." It was the engineering equivalent of a doctor saying, "Well, you're sick, but we don't know why."
He clicked "View Log," though he knew what he would find. The text file was a graveyard of matrix calculations and pressure iterations. Near the bottom, the error sat there, mocking him. "Partition file write failure. External library exception. Code 99998."
"Write failure?" Eduardo muttered. "I have two terabytes of free space."
He did what every desperate engineer does at 2:00 AM. He opened Google. The forums were a tapestry of misery. One user suggested increasing the RAM. Another blamed the graphics card. A third claimed the software was haunted by the ghost of a failed toolmaker.
Eduardo rubbed his temples. The client presentation was at 8:00 AM. He needed that warp prediction. Without it, he couldn't tell them if the part would warp into a useful shape or a potato chip.
The Hunt
He started with the basics.
C:\Project. No change.He ran the analysis again. Crash. 99998.
He simplified the mesh. Crash. 99998.
He turned off the cooling analysis to save processing power. Crash. 99998.
The clock ticked to 3:30 AM. Desperation began to set in. Eduardo walked to the window, looking out at the parking lot lights. Why does a write error happen when there is space?
His mind drifted back to his internship, an old mentor named Silas who used to smoke a pipe by the server racks. Silas used to say, "Software doesn't crash because of magic, kid. It crashes because it's trying to put a square peg in a round hole, or it's trying to count to infinity and runs out of numbers."
Eduardo snapped back to the screen. "Count to infinity."
The error log mentioned a "Partition file." Moldflow, during a dual-domain or 3D analysis, slices the model into millions of tiny tetrahedra (pyramids). Sometimes, during the packing phase, the pressure equations become unstable at specific nodes. If the calculation produces an impossible number—
Error 99998 Autodesk Moldflow typically indicates that the required solver license
(AMI_STANDARD, AMI_PREMIUM, or AMI_ULTIMATE) is unavailable or cannot be reached
. While the Synergy interface (the UI) may open correctly, this error triggers the moment you attempt to start an analysis because the solver—which requires its own license—fails its check. Autodesk Community, Autodesk Forums, Autodesk Forum Common Causes Missing or Expired Licenses Disk Space: Checked
: The license for the specific solver (e.g., MFIB, MFIP, or MFIA) is missing from the server or has expired. Incorrect License Configuration
: The software is pointing to the wrong license server, or the "License Configuration" utility hasn't been set up on the local machine. Mismatched Software Versions
: Moldflow Synergy and Moldflow Insight are not on the exact same update version (e.g., Synergy is 2023.1 but Insight is still 2023.0). Network Connectivity
: The computer cannot resolve the license server's hostname to an IP address, common when using a VPN or across different network domains. Step-by-Step Troubleshooting Verify License Status (LMTools) on your license server, go to the Server Status tab, and click Perform Status Inquiry
. Ensure your Insight solver licenses (e.g., AMI_STANDARD) are listed and not fully checked out by other users. Run the License Configuration Utility
Close all Moldflow instances and go to the Windows Start Menu: Navigate to Autodesk Moldflow Insight 202X License Configuration 202X Confirm the License Mode (Network), License Level (Standard/Premium/Ultimate), and Server Name are correct. Check Version Matching
Open your Windows Control Panel and check "Uninstall a program." Ensure the version numbers for Autodesk Moldflow Synergy Autodesk Moldflow Insight
match exactly. If one has an update applied (e.g., Update 1), the other must have it as well. Address Linux-Specific Solver Issues If running solvers on a Linux machine, ensure the ADSK_SERVICE_ADDRESS environment variable is set correctly in the mfclient.env (thin client) or /etc/opt/Autodesk/ami-20XX (workstation) files to point to the Autodesk Licensing Service Kill Rogue Solver Tasks Check your Task Manager for "ghost" solver processes like
. If a previous analysis crashed but didn't release its license, ending these processes manually can free up the license for a new run. command line steps for manually resetting the license server address using the AdskLicensingInstHelper tool
Win + R, type %TEMP%, and delete all files (skip those in use).C:\Users\[YourUsername]\AppData\Local\Temp\Autodesk\Moldflow\ and delete any residual lock files.services.msc → look for "Autodesk Moldflow Job Manager" → Restart).In Moldflow, Error 99998 is a numerical solver’s white flag. It means: “I tried to calculate the flow front, pressure, and temperature, but after thousands of iterations, the numbers won’t settle into a stable solution.”
Physically, this simulates the real world: If your injection molding process settings or part design are too extreme, the actual melt front might oscillate, hesitate, or stall. Moldflow raises Error 99998 to warn you: This part may not fill properly in real life.
But in simulation terms, the solver failed to meet the fill tolerance—a tiny internal threshold for how much the pressure or temperature can change between iterations.
If you have tried all the above and still see Error 99998, gather these diagnostic files before opening a support ticket:
%TEMP%\Autodesk\Moldflow\Logs\ – look for moldflow_jobmanager.log and solver_console_output.txt.dxdiag and save the report).Autodesk support can use these to identify if the error is due to a specific graphics driver conflict or a rare file system filter driver issue.
1. Relocate your study file.
D:\MF_Projects\MyStudy\D:\MF\PartA_Rev3.sdyC:\Users\My Name\Desktop\Part A (Final - Copy).sdy2. Clear temporary files.
Windows + R, type %temp%, and delete all contents (skip files in use).3. Run a study with a different material.