Hey there Traveller, these look almost variegated, but based on the fact that the top leafs are affected after the bottom leafs, it's a nutrient not a genetic issue... combined with the heat. So the tacoing of the leafs is from the heat and the color is a magnesium deficiency. this you can see from the yellowing happening at the serrated edges of the leafs , starting at the base and spreading and starting with the older leafs first. This is because at certain temperatures , the plant needs more Mg because of increased metabolic activity. At the same time i'm not seeing red stems which are a common symptom in when you have magnesium deficiency. Still though, it should be easy to fix this just by adding some cal mag , within a week you should see the problem stop spreading and within 10 days the plant should have bounced back. it wont hurt your plant, but if the problem keeps spreading then that means it's just variegation which is even less problematic than a deficiency actually. Hope this helps ! 🚀 PS : "high quality genetics" right? 🚀