For example: I watch this site: https://wax.atomichub.io/market/sale/wax-mainnet/Count-Bancula_162553368

Clicking on "Last Days" I can see a chart regarding that NFT.

Switching to "Last Sales" I used to see a chart but since several months I cannot see any chart.

Why is that the case?

A wrong browser setting on my side or a bug on the side of wax.atomichub.io?

Regards