Add flow.exe , cool.exe , and warp.exe to your Antivirus/Firewall exceptions.
Save your project in a simple directory like C:\Simulations\ . Long paths (over 256 characters) often trigger 99998.
A "bad" mesh is the most common reason for a solver to give up mid-calculation. autodesk moldflow error 99998
Use the Mesh Repair Wizard to find and fix overlaps or intersections.
Ensure your GPU drivers are current, as Moldflow uses the GPU for certain calculations. Phase 2: Software and Connectivity Add flow
If the hardware is sufficient, the issue is often a communication break between the interface and the solver.
If the error persists after these steps, it is likely a specific related to a unique combination of material data and process settings. To help you get back to your simulation, could you tell me: Which version of Moldflow (2021, 2023, 2024) are you using? A "bad" mesh is the most common reason
Loss of connection to the Job Manager or Simulation Compute Manager (SCM). Phase 1: Hardware and System Check