What do you think ? what is missing or overdose

Calmag 4 ml a gallon i would flush her for a couple days heat,calmag,nuteburn all at one time aint good start cutting the tips of the burnt spots off if your leaves still are turning colors its nute burn if your leaves shake back and the color stops it was calmag heat is a issue also u in flower so she will grow reguardless try trimming her up she will be ok just dont let the burnt leaves get to close to your buds the trim will suk and u will have ugly ass buds ✌️✌️🍻🍻

My first thought was of a nutrient burn, have the leaves continued to get worse and spread to new unaffected leaves? If it hasn't continued to spread I think it got burnt and now the leaves are just stuck that way, as many wont heal after the burn. The second thought was it needing a higher dose of potassium which can also give those burnt looking brownish tips. Since this strain usually finish around 7-9 weeks of flowering theres still time. If you feel like it's still experiencing a burn like last week, maybe give it a good flush, otherwise up the power of your potassium slightly. She looks good overall and I'm sure she'll finish just fine. Happy Healthy growing, I hope the problem gets fixed.

Looks like your nutrients are blocked, it can come from your ph, det it down to 6,1 or 6, add some calcium it will help your nutrients to be eaten by your plant, when you have temperatures like 29° you HAVE to give extra calcium, calcium deficiencies can come when you grow with leds, when it's too hot, or when you have a bad PH.. So here you can say it's a combo ! I had the same problem two years ago.. Greenhouse powder calcium, and 3days after everything was ok ! I hope i helped you, feel free to ask ! Michka