Check for firewall or security software blocking the license request.
Understanding why this happens is the first step toward a fix. Frequent triggers include: autodesk moldflow error 99998 full
Real-time antivirus scanners (McAfee, Norton, Windows Defender) sometimes lock the .tmp files Moldflow creates in the %TEMP% folder. When the solver tries to write to a locked buffer, it sees it as “full” and throws error 99998. Check for firewall or security software blocking the