Always last in the trade among other people with the same price

When trading, I always show up last in the list on poe.trade at the same price as other players.
I have a friend who is always first on poe.trade at the same price. How it works?
Due to the fact that I am the last one on the list, they rarely buy from me, but from a friend instantly, the same product.
If I sell enlighten support for 3ex I will be the last one on the list among those who indicated the same price. My friend will be the first on this list.

Same here.

I just listed multiple different items like gems, unique jewels etc at the same price as others and i was always last...Noticed it first yesterday and did not change since then.