What size pot are you using. It certainly looks like its going into flower. That can sometimes happen if the plant gets root bound. What exactly is the seed/strain, where has it been sourced from, and are you able to trust the breeder or source ? Because there is a chance that it may just be unstable mixed up genetics and hold some autoflower plants in the strain or semi auto. Or could be just straight auto flower. Can you tell us what your day light hours are outside were the plant is kept, as some indica types can trigger into flower under 14 hours of light. Having a room with multiple lights with the one directly over the plant not working shouldn't trigger flowering. If that was the case in large grow opps were they use multiple lights they would have to have the whole roof filled with lights side by side with no space inbetween. But it dont work like that cuz even if there is no light unit directly over that specific plant the plant can still see light from different angles, and the leaves re-adjusting to face the angle of another light in the room will show this. When par or ppfd maps are made they show the light travling further than just directly under the light board. If a light is good it can light up a whole tent and dosent need for example a 4x4 size of the light board to light up a 4x4 tent so the one light being out cant have caused this issue.
