There are many posts in this Forum on the topic of "convergence" and how to resolve this problem. (You can use the [Search] button in the upper right to find these earlier posts.)
If you're having issues with YRODs, you can try adjusting their convergence parameters in the configuration. Just remember that if you change anything in the configuration that will change the results, you must pass through input and error checking for the change to take effect.
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Regards,
Richard Ay - Consultant