Unlike specific material or boundary condition errors, 99998 usually indicates:

Start Menu > Autodesk Moldflow Insight 202X > License Configuration Verify your License Mode (e.g., Network) and License Level (Standard, Premium, or Ultimate). Enter the correct License Server hostname . If your network is finicky, try using the IP address 2. Clear Rogue Solver Tasks

Moldflow is a memory-intensive application. Error 99998 often appears when the solver requests memory that the system cannot allocate or access.

The best solution is to manually define the license server for the solver using the command-line helper tool.

Run Mesh > Mesh Tools > Connectivity Assistant .

If the Insight license resides on a different server than the UI, use the Autodesk Licensing Installer Helper via Command Prompt to manually set the server for the specific product key (e.g., 573O1 for Insight Standard 2023).