I was having some difficulties with gardening last night. One issue, the inability to water, was fixed after I reported it in chat, but there was also a harvesting bug I encountered a couple of times after that.
Upon clicking a crop to harvest it, I got a message displayed above the garden that said "Oops. Somehow you failed at harvesting that. Try again?" and the crop illustrations were unchanged as if nothing had happened. When I clicked the button to refresh the garden, the plots were weedy as if I had actually completed the harvesting action, but the crops were not in my inventory or on the ground.