It kinda looks like a light cycle disorder.. For example does ur neighbors have outside lights that shine into ur back yard or any lights in ur own back yard if a plant doesnt have 100% of dark it wont fully develop buds and will grow little leaves in the bud the buds dont look very big for being 4 weeks old either.. It looks like it is reverting back to veg to me idk it could be a nuti problem maybe!!