Mini mandarin punch auto

I deliberately missed a week as not much is happening during flower stage. The mandarin punch auto is alive but not really kicking, on paper it has about 4/5 weeks left but I'm still feeling like it should be further along at this stage. The smell is virtually nonexistent and the buds are not much bigger than my thumbnail and not dense at all, nutrient lockout? The lemonade OG auto from real gorilla seeds has caught up with the mandarin punch despite being 2/3 weeks behind but I'm now feeling like she has stalled as well, maybe it's just me getting paranoid, on the up side the lemonade OG stinks amazing. Happy harvests to all, peace