Creo Simulate Random Response Analysis Fails without any error

I am facing an issue in Creo Simulate 9.0 while performing a Random Response Analysis on a large assembly. The modal analysis runs successfully up to 2000 Hz and extracts approximately 250 mode shapes from a mesh containing around 280,000 elements. However, when I proceed with the Random Response Analysis using these modal results, the solver fails with the status "Run Failed". No specific error messages are reported in the log files, making it difficult to identify the root cause. The analysis is being run on a high-end workstation with 256 GB RAM and ample local disk storage, so system resources do not appear to be a limitation.

What is interesting is that the Random Response Analysis completes successfully when limited to only a few modes (for example, the first 6 modes). Has anyone experienced a similar issue with large models or high mode counts in Creo Simulate? Are there any known limitations, solver settings, memory requirements, or additional diagnostic logs that I should investigate? Any suggestions or troubleshooting recommendations would be greatly appreciated. Thank you for your help.