This is really weird and I hope it was just a glitch in the system. I ordered a bunch of books from someone last night. After finding one of them when I got home, cancelled the order. Now I just noticed the book requested from a new member in my requested list. Why on earth is FIFO moving my request on to another member when I cancelled the order?!?! This is not good if I don't keep catching it and someone agrees to send it.

The sender may have cancelled it before, or at the same time as  you did.  Re-cancel the order, and it should go through.

Either that, or it was a glitch.

Did you have the book on your Wish list, and if so, did you take it off your Wish list after you cancelled it?

That's all I can think of that might cause it.

Nope, not wishlisted. According to my credit registry I cancelled the order at 1:48am on 10/11. The person I ordered them cancelled the order at 4:09pm on 10/11 and that seem to resurrect the cancelled book order when the others were forwarded on in the FIFO system. Those night time gremlins.. Hasn't reappeared since I cancelled the last one and since the order is severed into multiple orders now I don't think it will do happen again .

ahhh, if the person you ordered from cancelled the order that is why it went to someone else.  Only if you cancel does it not go into the FIFO system