I've noticed several glitches that seem to be happening more frequently.
1.) Divider - the divider isn't showing up in preview mode. Sometimes it doesn't show up at all. The 'part' is there, but the divider is invisible. I have to remove and add it several times for it to show up. Never sure if it is going to actually show up once the campaign has been launched.
2.) Picture library - sometimes pictures are not uploading to the picture library right away. I have to log out and log back in for it to update.