Yes you, Pearl Abyss, say it is a known issue.  I placed 200 bottles on my character and started collecting water.  I set the repeatable check box and left to watch a movie for 2 hours.  Only 79 bottles collected and 121 empties.  I didn't think I needed to babysit the AFK collection.  Are there plans to fix this issue anytime soonish? 

From the users reading this post, I would like to know, if there are any other AFK activities that get interrupted?  Am I safe to cook, fish, sleep, etc. ?

Have fun... I am trying to have fun too.