Here's some important news regarding the Bazaar.
Currently there is an issue when setting prices for stacked items in bazaar. Do not sell a stack of items worth more than 4,294,967 pp (platinum pieces) total.
If you are selling a bottle of water for 1 plat each and have in a stack of 20 of them, the total would be 20 plat this pricing would not be bugged.
However, if you are selling a bottle of water for 214,750 plat each and have them in a stack of 20, the total value would be 4,295,000 pp but you would lose lots of platinum due to the bug.
We apologize for the inconvenience and hope to have this issue fixed as soon as possible. Please note that due to the complexity of the issue, a resolution may not be pushed live until the beginning of the year due to the holiday break. However, the status for a fix is currently pending.