From SF ticket:
When using the simple model and fitting a mixture, when you are fitting only the mixture % after fitting it will unselect the mixture variable for fitting and then instead select the SLD for component 2 for fitting each time.
//
This seems a bit tricky, as there are coupled parameters not actually fitting. Maybe should be done together with a rewrite of the paramter handling.
From SF ticket:
When using the simple model and fitting a mixture, when you are fitting only the mixture % after fitting it will unselect the mixture variable for fitting and then instead select the SLD for component 2 for fitting each time.
//
This seems a bit tricky, as there are coupled parameters not actually fitting. Maybe should be done together with a rewrite of the paramter handling.