I have been testing out Elements using one of the free projects (coming soon) and when I make even the smallest of changes on the single page in the project, it always uploads 2,931 files (I had not deleted all the unnecessary items from the project).
This is very annoying and is reminiscent of RW Classic where when you make a small change, publish and then if you do not exit out of the project and make a minor correction, it will upload 100’s of items. Quitting and reloading gets around that in Classic.
I have tested this with version 1.0