Numbers not syncing with iCloud
Ever since the latest iOS and El Cap updates Numbers files will not sync via iCloud. I get "Updating spreadsheet" on the iOS device which never completes, and a small progress bar in the iCloud Numbers directory if going the other way.
Have tried creating and saving new spreadsheets to "kickstart" the sync process but doesn't help.
Apple has never been good at cloud sync support but I would have thought basic things like syncing would be ironed out by now.
Any idea about library files to delete or other house keeping that would restore proper sync functionality?