CrossLinks enable content from one Vault to be used in another Vault within the same domain. The Resync with Source action manually synchronizes the CrossLink with its source document. Is the viewable rendition re-rendered after performing the Resync with Source action of a CrossLink document?
The key concept of CrossLink is that a document in Vault uses a copy of the viewable rendition of a source document in another Vault. So the Resync with Source action does not trigger the re-render action.