Blue Dream, Super Lemon Haze First Grow!

I'd guess your environmentals are extreme. Leaf morphology is highly dependant on environment plant finds itself. To summarize. Leaf morphology, or the shape and structure of leaves, is strongly influenced by environmental factors. These factors include temperature, water availability, sunlight, and nutrient levels, and plants adapt their leaves to optimize survival and reproduction in their specific environment. Leaf morphology is a dynamic trait that reflects a plant's evolutionary history and its adaptation to its specific environment. Plants have evolved a wide array of leaf shapes and structures to thrive in diverse conditions, showcasing the close relationship between plant form and function. Very high light, very hot and humid, with a little too much stress, will be a big contributor to what you see. Not good or bad, just is what it is. Although the leaves look tiny they will have a much higher stomatal density than larger leaves, the diffusion pathways for gas exchange are much shorter allowing the tiny leaves to produce more specialized gas exchange to perform in high stress environment. Everything is a signal, temperature, intensity etc. If the plant receives extreme environment signals it will dramatically alter the underlying mechanisms to better perform in those extreme conditions. Problems arise when plant receives mixed signals........ In nature in natural conditions, everything is linked, in nature you would never have 95F 40rh in a overwatered medium with no drainage so the signals never get confused. Whereas indoors we have people running 77f 90Rh on seedlings and wondering why she isnt growing for 4 weeks..

I agree with Organoman, what are we looking at? Plant looks ok, ease up on some of the training and it should do just fine next round. I think you may have dwarfed it a bit this run but still will produce.

Yeah, I would guess this is a mechanical issue. I have every now and then a single leaf that looks not for 100% healthy and most of the time it was a unrecognized mini-accident while training the plant (as you mentioned with the LST-wire). If there are not leafes start to look like that, I would handle it as "no problem".