I have scheduled some posts, the first of which should have gone at 6.00am this morning. It didn't so I changed it on the calendar to 10.00am. It still didn't do and checking the post itself still showed 6.00am as scheduled publish time. So I changed it in the post to 11.00am and it still didn't go. I went back to the calendar and it was still showing scheduled for wrong time and draggable.
...just logged in again and has now caught up! Is there anything I should be checking or changing somewhere?