Equations - Lost references

In an assembly I have a "driving" or "skeleton" sketch, that is used to locate components and drive a pattern.

The number of supports changes, depending on the length of the assembly, and this is controlled by Equations.

This takes the form DIMENSION_NAME@FEATURE_NAME

Now, if the dimension or the feature are renamed, the equation falls over.

Any idea if SW is working on fixing this?

SolidworksParts And Features