Eclipse workspaces (more precisely: the .metadata folder in the workspace) are *not* intended to be moved or copied to another location/path.
They contain very specific information about the location where they are.
So workspaces cannot be moved/copied/shared by any means.
If you do, then all kind of problems can occur.
You can think of the workspace (actually the .metadata folder) as a kind of registry.
But your projects can be moved/copied/etc, and they do not have to reside in the workspace folder.
So keep the workspace in the place you have created it. If you need to copy/apply workspace settings, you can export the settings and import them into other workspaces.
I hope this helps.
Erich