Deficiencies? Help.

Any ideas on what she needs?

Fast Buds purple lemonade, soil, been feeding with Dr Earth amendments and molasses. She’s about 3-4 weeks into flowering. Been a fussy one since the beginning, the other ones from the same strain had no issues.

I'm certainly no expert but that plant looks like it's at least 6 weeks into flower.at this point I would probably just make sure I was not over or under watering and ride it out. To me it looks like the plant is just hitting a strong fade although it is probably early for it to be that faded. this is just an opinion based on one picture without much more information

Can't see much on mu phone. But looks like it needs some nitrogen. Whats the NPK of the food your giving it

I would guess magnesium. A bit odd to run into a nitrogen deficiency this late in the game. What is your pH at? PPM?

What's your soil like? Way long time ago I had to use Epsom salt as my molasses gummed up my soil and she wasn't getting what she needed.