This is an odd one. The attached PowerPoint file has been stripped back to a bare minimum single slide master containing a single layout.
I'm trying to change the paragraph spacing from 1.5 to 1.0 in the layout (not the master above it).
It doesn't seem to accept it yet it's possible to change it in a slide created from the layout.
I even looked at the spacing via VBA before and after changing it to 1.0 and in both cases it returns 1.5 so it appears something is preventing the change?
If I use the format painter to pick up the format from another deck which doesn't exhibit this issue and apply it to the attached deck, it's fixed. But what is being changed?