Makaylarae
Greenhorn
Farm map, no mods, was occurring prior to 1.5 update (95% sure at least). One particular square on the bottom edge of the farm map spawns either a small rock or small log every few days. If not mined/chopped, it begins spreading like weeds would, spawning a mixture of rocks and small logs nearby. Spreading rocks/logs will destroy items like weeds would. If the square is cleared and something 1x1 in size is put on it (such as pathway, crop, or small statue), the item is destroyed and replaced with a stone or log, with the "overgrown weeds have caused damage to your farm" message in the morning upon waking up.
Tried putting stone pathway down with a gourmand statue on top of it (2x1 statue). Received the "damage to your farm" message in the morning. Statue remained but pathway was destroyed, no log or stone present.
Unsure if it's the same issue, but weed-like stones and logs spread over behind jojamart for me as well. That's not disruptive to gameplay however.
Tried putting stone pathway down with a gourmand statue on top of it (2x1 statue). Received the "damage to your farm" message in the morning. Statue remained but pathway was destroyed, no log or stone present.
Unsure if it's the same issue, but weed-like stones and logs spread over behind jojamart for me as well. That's not disruptive to gameplay however.