Understanding why this block occurs helps narrow down the solution quickly. The issue usually tracks back to one of the following system failures:

This error often occurs because you are genuinely out of licenses. The solution isn't a technical fix but a workflow adjustment. Check your Simulation Compute Manager (SCM) to see who is using licenses. Ensure the number of simultaneously running analyses does not exceed the number of licenses you own. If you are using a batch queue, ensure your job server's "Maximum Simultaneous Tasks" setting is not set higher than your license count.