I reported this in the bug forum as well, but I just wanted to get this out to the general community in case any of you experience it.
Apparently some sort of “refresh” or “reset” that the game engine does every so often will cause your character to leave the trading post screen, or will interrupt and stop the harvesting process of whatever it is you are harvesting.
This started happening to me about a week ago. Noticed it mostly with mining ore. Character gets part-way through and then just stops mining and goes back to standing idle.
In the trading post, when I was browsing for certain items the trading post would just close automatically, kicking me back out into the main game screen.
This bug hasn’t prevented me from finishing whatever I was harvesting, I just interact with the ore again and it completes the harvest. And I was able to go right back into the trading post to continue browsing.
Not game-breaking things but happens often to be fairly annoying.