Is there a problem, what do you think I should do? Should I cut unhealthy leaves?

I just had if I were you. Leaving the leaves hanging because your plant is not growing as normal, she will need it badly

Bro, I don't want to sound rude. But you have opened 4 Q with the same grow in the space of 2 days and expecting a dif result every time. Are you wanting someone to tell you to do something that's going to form some bud. I don't have experience with revegging photos but energy is used, I don't even know if you'll get bud to form. I'll say it again. Chop that bitch and move on man. We live to learn and I'm sure you've learnt where you've gone wrong. I know autos aren't photos. But until you have your timing down and the time to put in, and a few other things I think. But with autos they really don't skip a beat if you mess up on the hrs or your few hours over or under. Just a thought. And again, I'm not being rude but you keep asking the same Q.. and all the answers are near enough the same. Me personally I'd move on and get a new grow(s) going. You shouldn't put all your eggs in 1 basket neither. I don't see any other plants. Until you got it down I wouldn't run 1 plant by itself there is many things can go wrong as you have experienced. So maybe autos will suit your growing style. But I really would consider moving on all the skills in the world can't bring back energy that's been used up. But idk I've not dealt with something like that. But if many are saying the same thing over and over I think you got your answer man. Glad you joined the community and I hope we can help you to get a better end product. There's is many valid points throughout all the answers ppl gave you. They all have their merits. But you really should chop that, rethink your growing style.. if you aren't around all the time you go supersoil, promix, or biotabs. Something that helps you help yourself and your growing style. You'll get there man but just move on from that. Take it down and harvest what you can. Sorry man.

Ok just read the diary. It’s your first grow we all been there. But it’s gone wrong. Your ph is 6.6… way to high for coco. You should be at ph 6 also your giving your girls one nutrient. And it’s a pk. You need base nutrients ect. I think you just need to cut that girl down and go again. It’s all a learning curve bro. Better luck next grow.

Wow... you've got some serious issues here, don't you?! Is this the grow you've got the diary running for? What I'm seeing is a lot of nute burn and would say it's nitrogen toxicity but your diary lists only bloom nutes which are usually pretty gentle on nitogen content. If that's NOT the issue, your drooping leaves would then tell me they're being over- or underwatered (the drooping can come from both watering issues and nitrogen issues and the reason I went with nitrogen first is that the leaves look very dark green and have nute burn on their tips)... I guess my recommendation to you would be to do a hard flush (or simply take away all nutes and give her water only for the next week or two). I would also ask if you've been diligent in keeping the PH of whatever you give her (water or nutes) within a proper range (6.0-6.5)... PH out of that range can result in a whole host of problems. If you don't have one, invest in a PH pen as they are FAR more accurate that the strips or the little drops ... Good luck! Hope you can get her back on track!

cut it its either revegging or doing some other crazy shit. cut it and dry it and try again with new plants and make sure your timers are working correctly.

Looks like nutri burn. Tips are burnt. Never cut a plant after week 2 of flower imo. Flush her out with plain ph water then start again with lower nutrients. You can use something like canna flush to help with flush. What week they in coz she looks like late with the hairs all brown like that.