[Hummingbird Pro] Humming bird Pro clear cache does not clear mobile.

Easy to see this issue and recreate.
1. have multi-site with subsite enabled HBP
2. HBP set to cache mobile
3. Make sure one of the subsites and mobile directories under wphb-cache.
4. make sure under dir mobile you see subsite name
5. clear cache in admin bar
6. clears desktop but not mobile List mobile directory you still see the subsite and files.