The difference between this and the issue previously is that the station is not importing/exporting the item, so the background simulation (NPC's) are not over supplying the item.
Previously, an importer would show as having 0 LOW demand (usually) and high supply, whilst still importing the item at a loss, causing it to be oversaturated with no way to recover.
So far, this appears to be fixed now from the stations I have looked at anyway.
This screenshot shows what the problem was...
Liquor imported, yet no demand and high supply, making all trade related information inaccurate and messing up the pricing.
The station in your screenshot looks like it was generated with that stock amount when the markets where populated.