I've noticed this also. The bug is associated with the loading process. Effects all planters present when loading a game. It effects farming planters also, but fortunately doesn't seem to change the behavior of the plant itself, it is simply disconnected from the planter. For example destroying the planter does not remove the plant, which then floats in mid air. Uprooting the plant and replacing it temporarily fixes the problem, but it comes back when loading the game. I checked again, and the problem disappears if the game plays for a few seconds. Good work fixing the bug. Though it is still odd how game time needs to proceed to fully load. Part of the loading process never occurs until you unpause the game. Clearly an intentional devoloper decision but weird.