If shelveProjects is a symbolic link, plugin can shelve projects, but cannot list, unshelve, or delete shelved projects. This worked correctly in v1.5. Since we unshelve only rarely, the workaround I'm recommending is to continue to shelve using the link, when unshelve is needed, set the link aside, copy the project to be unshelved into a real shelvedProjects directory, proceed with unshelve, then restore the link. Alternatively to restoring the original behavior, it would be useful to make the shelve directory a configurable parameter.