Okay so I tried checking off about half the category boxes, scanning, then checking the other half, and scanning.
This method seems to take even longer, but it does say X auctions updated, Y auctions added, etc which is better than 0/0/0.
Still having issues when I try to post a stack as smaller stacks, it splits them up incorrectly, and I still question the prices sometimes because many items I list at the auctioneer suggested price simply don't sell. So I find myself having to manually search and check prices and make my own price anyways.