Okay I'm stumped.  I don't get what I'm doing wrong.  I have an assembly of assemblies and they have configurations in them - but no design tables (maybe this is my problem), but I can't seem to get these things to size the way they should:

The two bottom panels are correct, and the top one looks like it wants to size, but no matter how many times I rebuild it, it doesn't change.  What am I missing?

Thanks