Can you give more information about inventory problem you had with showing it in several screenshots. I asked qa team to examine this problem but they need more information (because it seems they could not face the problem in 1.5.6).
On this screenshot we can see that the stumper horse is at the end of the horse list, while the mule is at the top ( depending of the city's inventory the results are different each time) however this is what I get just after pressing the trading button, I did not press any sort buttons.
As you can see items are supposed to be sorted by type by default, and iirc in previous version items of the same type were also sorted by price.
Also warhorses are mixed with normal horses, sturgian hunter at the top, and imperial at the bottom with normal horses in the middle.
Screenshot
Taking this screenshot and alt-tabbing to post it made my game freeze and I had to restart it. (no crash report, had to terminate steam process)
Now if I press the misc button (mainly when I want to buy foods) This is what I get
Screenshot2
As you can see, nothing is sorted by price by default while it used to do it automatically, and sorting it manually while give this result :
Screenshot3
Here the trading items are mixed with the food items, while it used to separate both category and sort them by price, again by default.
Thanks for your time.
Edit, forgot to mention that the same is true for every items, equipment are not sorted by type/price, so finding the best equipment in the long list of loot from battle is a huge pain now.
Screenshot4
I used to be able to see the highest value boot at the very bottom, then sorted by price until I reach the glove type, usually the highest value was the best armor, but now it's a big mess, and sorting by price will do the same thing as for food, it will mix up the types.