For versions 2023 and newer, the installer relies on a dedicated standalone setup executable. : Close all active instances of Moldflow Synergy .
: All available licensed corporate network seats are occupied, or crashed/orphan background processes from previous jobs are holding onto licenses exclusively.
The Autodesk Moldflow error 99998 exclusive can be frustrating, but it's not insurmountable. By understanding the causes, symptoms, and solutions outlined in this article, you'll be well-equipped to troubleshoot and resolve the issue. Remember to take preventative measures to avoid encountering this error in the future. If you're still experiencing issues, don't hesitate to reach out to Autodesk support or a qualified professional for assistance.
If you're still experiencing issues with Error 99998, try running a simple test case to isolate the problem. This can help you determine if the issue is specific to your model or a more general software problem.
This gives Moldflow more time to negotiate the exclusive lock over slow networks. autodesk moldflow error 99998 exclusive
In Autodesk Moldflow, typically indicates that the software is unable to obtain a license for the solver (Insight), either because the license is unavailable, all seats are in use, or the connection to the license server has failed. Common Causes
Lack of communication between the client and the . Firewalls or anti-virus software blocking license requests.
Or:
Before fixing Error 99998, you must understand how Moldflow manages file access. Moldflow does not simply read/write to a single .sdy file. Instead, it uses a . Each project contains multiple studies, and each study contains dozens of files: For versions 2023 and newer, the installer relies
: Sort all active processes by name and locate any rogue simulation solver entries. Look explicitly for: flow.exe (Flow calculations) cool.exe (Cooling layout analysis) warp.exe (Deflection and warpage) mhb3d.exe (3D meshing/solving tasks)
Very long file paths, non-ASCII characters (e.g., accents, Chinese characters, emojis), or spaces in folder names can disrupt the file creation routine.
Are you using a or network license, and which version of Moldflow are you currently running?
Sometimes a previous simulation crashes but hangs in your system's memory, permanently holding onto your license seat. The Autodesk Moldflow error 99998 exclusive can be
Never force-close Moldflow using Task Manager while a study is open. Always use and File > Exit .
If these lines show 0 available seats or do not appear, you must generate an updated network license file via your official Autodesk Account Dashboard . 3. Extend the FlexLM Connection Timeout
Provide this data via the Autodesk Subscription Center. In rare cases, Autodesk may provide a hotfix or script to patch the project database.