Problem leaf tips

How long was it in the solo cup? Did you fertilize it in the cup? How long ago did you transplant? The leaves look pretty yellow so I am guessing it was in the cup for more than 2 weeks. It is probably N deficiency, but it will be fine. Whatever you do, DO NOT fertilize. Maybe light big bloom or boomerang if you have it or some flower kiss foliar if you cannot help yourself. But, my advice is just to let her ride it out. That is my best advice without more information. Answer those questions for me and we can get a better grip on it. She will look better in <1wk

You said you transplanted and then mentioned FFOF. Was the plant started in FFOF first or just now that you have transplanted? The color is lighter green than it should be. I suspect not enough nitrogen. Even in FFOF at this point I am starting additional nutrients.

she just had abig need for nitrogen, wich she could not get in the tiny pot and she cannibalissed herself still alemony plae girl, but now she has enough nutrients and will get full green color in a week or so the older leaves will get brown and die, no matter.... the new grow is interesting