Odd leaves show up in autos more than people expect, from three fingered duckfoot shapes to whorled phyllotaxy with three leaves per node instead of two. Most of these are harmless quirks and the plant finishes normally, though yellow variegation means less chlorophyll and a slightly smaller yield. A gallery of common mutations with notes on which ones matter is on https://turboautoflowerseeds.com (https://turboautoflowerseeds.com) and it saved me from panicking over a twin seedling. Only cull if growth is clearly stalled.