Collections Based on Metadata Matching

[KodiUser1138]

Re-scanning Collections from the XML metadata no longer functions outside of the initial library set-up. It was removed (for some functional? reson) with 9.3 or 4 I believe. I used to use it all the time. Now it's basically broken.

I'm not sure when the last time you've tried was, but in 10.10.6 the process I described worked for restoring a collection from the XML.  Just straight up move the folder for the collection back into the over arching collections folder, scanned, and it was restored.

I just tried it now, 10.10.6, Making changes to an XML and re-scanning does not work. You would have to completely nuke the entire Collections folder, re-scan the library, copy over your back-up and then re-scan and see if that actually works. Perviously that was not the function and any manual change to a single XML could be re-scanned and impotted. 

Plus this method requires you to make regular back-ups of your collections metadata to ensure something isn't missed. 

Collections are a really cool way to fine sort large media libraries and keep like things with like things but the current implementation has many pitfalls which can rended them more trouble than worth by various users.