I've just recently recorded the scene with selling the lfower in Ul'Dah Catapult. (and am in the process of recording everything)
That really threw me for a loop. The flower you acquire is almost clearly acquired within the Echo (it happens after the starshower), but yet you try to sell it outside of it, and when you sell (AFTER the Esthaime shopkeep looks at it and comments on it) it's inside the echo to Niellefresne, and then after that echo-jump is done the shopkeep asks for the merchandise again and notices you already sold it?! And then proceeds to comment on how flowers are rare.
I had no idea wth was going on there, you brought a flower from the past by echo-jumping?