Two questions,
First When you do a search for "Ollie Canal" (http://e621.net/post?page=1&tags=ollie_canal) you get 60 pictures, when you click on one of his pictures it shows 62 pictures. Why does it show 2 extra pictures over when you search everything? Is it a database error or are there two pictures you cannot get to?

Also, I am looking for a picture by Ollie Canal called "Otter Procreation" It is an older picture and if anyone knows where I can find his older works please let me know. Thank you.

There is a bug where it is possible for an image to have a duplicate artist tag (ollie_canal appearing twice in one image), this also causes this image to count as two images when searching for it.

If you look through the search results you would probably find the image causing this, it will be right next to another of itself.

It is easily fixed by editing the tags and than saving.

OP you could've picked a more appropriate topic title.

Looks like that bug is still there. Posted an image where the artist and title are the same and it double posted. Have to go edit the tag.