Permissions on Windows 8 libraries keep resetting for homegroup users to read only!! HELP!

I have several windows 8 devices now in a homegroup.  One of them acts as a main media center in which I have added additional folders on a second drive letter source to the libraries such as a 2nd internal hard drive or USB drive.  I have added the HomeUsers group to each of the libraries and set it for FULL access permissions but after each reboot all of the libraries keep getting reset back to read only for homegroup users on the folders I have added to the libraries from the second drive letter source. 

This worked perfectly in windows 7.

I have thoroughly tested this.  This is 100% reproducible.  Create a home group.  Configure libraries and add folders to the libraries from a 2nd drive letter source.  Grant HomeUsers group full access and it only works until you reboot on the folders you have added to the libraries from the second drive letter source.

This only happens on folders you add to a library on a 2nd drive.  Not the default library folder.  

Here are links to other threads on this issue and lack of microsoft repsonse:

http://answers.microsoft.com/en-us/windows/forum/windows_8-networking/share-to-homegroup-does-not-keep-the-edit/deb46a2d-fe1c-490a-a22d-de99e5ae5046?page=3&tm=1377202832475

http://answers.microsoft.com/en-us/feedback/forum/mods/moderator-abandoned-win-8-web-and-networking-forum/f87ba671-329e-4b3c-83a0-b657148d415a?tab=question&status=allreplies&page=1