Operating system: Windows 10 64bits
Graphics card:2x GTX 1070
Broken: 2.80 beta January 24th version
Short description of error
There is no way to be able to save new workspaces. Each time Blender starts, the workspaces created are gone, even when user preferences were saved.
Exact steps for others to reproduce the error
Just try to create a new workspace, save the preferences and restart Blender. The workspace is gone.