Facebook Page Bug

Facebook Page probably only allowed scheduling of future posts up to five months ahead then disable date selector for dates onward. Recently, an error, probably a bug, was experienced when some posts due March were not posted as scheduled. Upon checking the Users Activity Page, message alert was shown to re-post at current time without an option for scheduled date. Could this be an isolated case, or could it have affected as well all Pages upon implementation of Page Admins' post identifier?