Box: Intermittent delays with Box Sync, email notification delivery, and content indexing for search
This situation apparently continues, at least through 0800 12/2/17.
Box:
Wed, Feb 1, 2017 07:40 PM PST
“Intermittent delays with Box Sync, email notification delivery, and content indexing for search
Incident Report for Box
Investigating
Despite addressing the earlier issue, Box Engineers continue to investigate and remediate impact to other services including Box Sync and delayed updates, email notifications, and search indexing.”
Story added 2. February 2017, content source with full text you can find at link above.