If Moldflow cannot resolve the name of your license server, you must force it via the system registry or the tracking files.
If your simulation fails after a long pause, your computer is likely timing out before receiving a response from the license server. Extending this window allows slower networks to clear the request.
Check network share settings
The fluorescent lights of the Voxel Innovations server room hummed a monotonous B-flat, a fitting soundtrack for the tension gripping the facility. Outside, the rain lashed against the concrete walls of the Detroit suburbs, but inside, the air was dry and cold.
Error 99998 is a generic "fatal crash" wrapper code. It indicates that the Moldflow Insight solver engine began an operation but was abruptly forced to shut down by the operating system or the Autodesk Licensing Service. autodesk moldflow error 99998 exclusive
For more detailed technical steps or specific product keys, you can refer to the Autodesk Support article on Error 99998 .
is a critical licensing error that completely blocks injection molding simulation solvers from executing a job. The error message typically states: ** ERROR 99998 ** Required license for AMI_STANDARD, AMI_PREMIUM, or AMI_ULTIMATE is not available, or all licenses are currently in use . This failure happens right when a user pushes a model to the simulation queue, leaving injection molding engineers stuck without data.
Ensure only the current, correct license server address is listed.
Lisa groaned. “Check the project archive folder on the server. Marcus had a weird habit—he used to map his temp files to a hidden subfolder named ‘exclusive_hold’ to force serial runs when the HPC cluster was overloaded. HR made him delete it before he left. But maybe…” If Moldflow cannot resolve the name of your
Moldflow operates like a factory floor. The solver needs exclusive rights to read input files ( .sdy ) and write output files ( .mfr , .op2 ) without interference. Error 99998 fires when the operating system or network says: "Sorry, that file is in use by someone else."
Security software frequently misidentifies the heavy, sudden multi-threading behavior of Moldflow solvers as a malicious resource hijack, killing the process instantly. Step-by-Step Troubleshooting Framework
Autodesk Moldflow is the industry standard for injection molding simulation. However, simulation workflows can instantly grind to a halt when the software triggers critical analysis failures. One of the most disruptive disruptions is .
By systematically applying the fixes outlined in this article—from deleting hidden lock files to adjusting SMB settings and registry keys—you can resolve Error 99998 in minutes instead of hours. More importantly, by adopting local project workflows and proper antivirus exclusions, you can prevent the error from recurring. Check network share settings The fluorescent lights of
Provide this data via the Autodesk Subscription Center. In rare cases, Autodesk may provide a hotfix or script to patch the project database.
For any plastics engineer or mold designer, Autodesk Moldflow is an indispensable tool for predicting how molten polymer will fill a cavity, pack the part, and cool. But few things halt productivity as abruptly as a fatal error code. Among the most cryptic and infuriating is .
Through years of support data and user reports, several primary causes have emerged. Let's break them down.
The solver needs unhindered access to local ports to pass data between the user interface (Synergy) and the computation engine (Insight).
Restart Moldflow and the machine