I have a site that I have backed up from our SharePoint 2013DEV server and restored into our SharePoint 2013 Test server using backup-spsite and restore-spsite. The site in question has a document library, with documents that have tags that are pulled down from the Managed MetaData Service application (Which was also taken from Dev and imported into Test).
Originally, when the site was moved, the tags were not showing at all. I managed to get these to show by granting all users Read permission to the TaxonomyHiddenList located at http://domainname/Lists/TaxonomyHiddenList/AllItems.aspx
A user noticed that once they checked out a document, they weren't able to amend the Tags on the documents. The button to choose metadata is just unclickable. I've granted all users full permission to the list(Not recommended I know, but just for testing) I've also granted all users Full permission to the Managed Metadata Service application for testing but still no luck.
Thanks in advanced for any suggestions!