I had a problem recently in which regular users (NT Authenticated users) could not see any data in Managed Metadata columns. The column headings were there, but not the data values. I searched for quite a while and I finally found what was needed.
There’s a hidden list called ‘TaxonomyHiddenList’ that needs to have certain permissions. Just go to:
[your SiteCollection URL]/Lists/TaxonomyHiddenList
Once you’re there, click on Lists and then List Permissions. Here are the permissions you need to assign, if you’re having the same problem:
That’s it and you’re done!
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