I have a Document Library with a Content Type that includes the default Enterprise Keywords column.
At the edit properties of the document dialog, the Tags are correctly autocompleted. Pressing Save, the column doesn't show any Keyword. Inspecting the Item using PowerShell I see the ows_TaxKeywordTaxHTField is being correctly updated with value 'PDS|850c43f7-49ec-8669-507b7eea2', but ows_TaxCatchAll is empty, ows_TaxKeyword is empty and ows_TaxCatchAllLabel is empty
But if I create a basic Document Library at the same SPWeb and add the Enterprise Keywords using Library Settings, documents are correctly set up with Tags.
Then, if I move those items to the faultly Document Library using Content Managment and Structure, they show up with the Tags as supposed to. Re-editing those documents, and the Tags are gone !
Inspecting ULS Logs, I don't find anything relevant
Inspecting the TaxonomyHiddenList I do find a few (no title) tags but nothing too serious. That List features 1600 items, so well under problems with Throttling on big lists
Has anyone got any insight on this ?