I've noticed that when I reload my trading hall in the End (reloading chunks/relogging world), the villagers re-link and change their work stations, forcing me to break and replace the stations again. I don't know if this is an actual bug or if it's exclusive to the End, as I'm not well-versed in knowing what bugs like these are, but either way this should be known.

Note: I don't know if this affects other platforms as I only play on Switch, so please let me know if it's happened on other platforms.