Side walls not following base dimensions after adding configuration to front wall

Hi everyone,
I’m working on a box model in SolidWorks. Initially, when I changed the dimensions of the base, the side walls adjusted automatically, as expected.

However, after I added a configuration to the front wall, the side walls stopped updating with the base. They now remain fixed in size and position, regardless of the base’s changes.

Before adding the configuration, everything worked fine.
Does anyone know what could be causing this issue? Is it related to the configuration or how the side walls are referenced?

Thanks in advance for any help!