Hi again. So my one plant that's in flower i...

Looking at your diary your giving them 2.05EC, that's quite high especially for an autoflower. The addition of molasses in the feeding will also boost that EC and add in a shit ton of sugars. I have found anytime I add in molasses it complicates the medium, moulds and bugs come a knocking. You might want to give them a smaller flush and provide a feed without it. As for the bloom fertilizer your using, The company Meigs does not provide any ingredients on the website nor a guaranteed analysis of it. No SDS's or MDS on the products either. It says the NPK ratio is 2-2-5 on its label but that's not really enough N or P in a fertilizer for a plant, it also says it has micro nutrients but does not list them. The site also sells wellness classes on yoga and shit. its a weird mix of things. I think you can do better with another brand. The about us page says the person makes the fertilizers as well. so they should know whats in it. I would email them asking for a list of ingredients and some lab tests its guaranteed, if they can't deliver ditch it. A lot of what they grow appears to be in soil so soil does not need that much macro supplementation if any at all. To me it looks like it needs some Mg and some P but is fine for Calcium, maybe it getting locked out with the high EC or its in a from that's not available to plants like Magnesium Oxide as it takes time to break down and become available. The tacoing leaves or turning tips up of the fan leaves is indicting it is under heat stress as well. 24c should not do that so maybe to much light or not enough water. Can calculate your DLI using PPFD maps for your light at specific hang highs from the manufacture. on the subject of lighting, 20hrs a day of lighting is also a bit much. plants need sleep and rest, they do things in this down time and 4hrs a day is not enough. I'd aim for 6-8 minimum. Good Luck!