It this still an issue? I wonder how my change could affect the switching behaviour because the only thing I do it to make sure that after spaces switch Finder windows get re-rendered.
Also I wasn't able to reproduce it here.
When switching to an application, switch to a Space with open windows for the application turned on. And
Displays have separate spaces turned off.
How do you exactly switch to another Desktop? Via a keyboard shortuct or via expose? Is there any other window present or the desktop is empty? Etc.