I've noticed over the last couple of days some of my bookmarks are missing from my unsorted list. Some are ones I've had for a long time. Others are recent. As a test I re-bookmarked a site last night and checked to see it was saved. However, today it was gone. I looked in all the other folders and recent history - gone. I tried deleting some old ones to make room in case there is a limit - but that didn't help.