Copied Project - Now properties, strings, settings don't change when edited

Using VS Code

Copied the entire project to another folder, created a new UUID, checked the manifest etc....

Don't see any references to the old directory in any files.

Made small edits to strings to see if changes are applied.

They don't show up in the Settings editor in the simulator.

Tried making small changes in the OLD project strings.

That doesn't cause changes to appear either.

Cleaned the project  and re-ran.

No change.

Anyone have an idea what's going on and how to get to the point that edits in strings, properties and settings actually are used in a build ?