The mods_ws folder is under control of Greenworks / Steamworks, that means that mods are installed, uninstalled (and hence folders removed) based on subscriptions.
If you copy / edit stuff in this folder, chances are very high that you will lose them. What does that mean? It means that you generally shouldn't bother to work on or with the "mods_ws" folder
@Pruff60 Are you still having the problem?