As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.
(a) is solved by the JIRA issue you linked to. There's only one loop matching that one in the issue. FYI, it's the first one - the 2nd doesn't match the fix given.
For (b) and © Tag reindexing happens as a background task, so make sure the server isn't busy doing other things - e.g. creating thumbnail images.
For (d) I'm confused - why doesn't the "Move to" action work for you..?
Ah ok - I think we're confusing terminology: In Alfresco folders are knows as "spaces". I think what you're doing is copying across Sites? If so, I think the tag scope isn't getting refreshed (i.e. it's a bug).
Please raise the issue in JIRA and I'll make sure it gets attention.