I think the autopricer isn't working correctly. I just did autoprice, and it didn't make any of my items any cheaper, they just all stayed at the same price. Is this normal?

Cheaper than what - cheaper than their own price in your shop, or cheaper than everyone else?

I noticed this too, some prices are the same or higher than the shop search.. my sales today were very low on my old shop and I have there 6k items.. I sold less than 50 items in 8 hours after the autopricing..