So, I was asked to set permissions on a single document in a document library for a group of users. The users already have 'Read-Only' access to all the documents in the library, but for this single document, there is a smaller group that will have Contribute rights.
Using the 'Share' feature available in SharePoint 2013, I tested this functionality on this document and a single user (Jane Doe). It worked as it was supposed to, and Jane had full edit rights on the document. Good so far.
I then added a group in Active Directory, and added Jane Doe, and multiple other users, to this group. I then 'Shared' this document with the group the same way I did it for the single user. Once complete, I checked the permissions for a few of the users and found they all had edit permissions. Again, good so far.
The next step I took was to remove the explicit permissions I gave to Jane Doe early, as she should get the rights from the AD Group. However, once I removed her, she no longer had edit permissions. All the others in the group are still working as expected.
I tried removing the group permissions, and re-adding them, but Jane Doe still doesn't have the rights the others in the group have.
What else can I do to get SharePoint to recognize the rights of this single user?