I just noticed that records are partially out of order in one category. We entered records in alphabetical order for that category. Somehow they are out of order in a strange way. The links in that category are OK until we come to page 14 under "E". All of a sudden links starting with letter "A" appeared. Obviously links with "A" should be at the beginning of the list. There are some links with "A" at the beginning. Some are found here, out of its right sequence.
I checked other categories. They seem to be ok. What is the problem?

I cannot explain what has happened: those records are in the right order now! Initially when I found them out of order, I rebuilt all the records several times, but nothing could put them in the right sequence. Today when I checked them again, they are in the right order. This is a miracle. Can somebody explain what has happened? Thanks.