It happens usually with items more than 50k. I tend to save my store repeatedly as I go down, because there is so many to price.

Is there some sort of bug going on?

do you have commas in your prices?

Sometimes, sometimes not. , could that be it?

yeah, you can't have commas in your prices!

Hmm! So it'll mess up my prices. Because it doesn't always do it, only on certain items.