Automatic update/ regeneration (twice) of a creo model including a mathcad prime external analysis

I have created a Creo model using a Mathcad Prime external analysis that calculates a parametric Bezier-curve based upon Creo parameters. I am using the Bezier-curve to create specific geometry inside my model.
The trouble I am having is that I always need to update/ regenerate my model twice for the geometry to change based upon the Creo parameters changing - the first regeneration updates the Mathcad analysis, the second one updates the geometry.

Is there a way to force Creo to update/ regenerate the model until no further changes (neither Mathcad results nor subsequent geometry) occur.

Thanks for any hint you might have to alleviate this issue.

Kind regards,
Carsten