chlorosis in new growth can be caused by morethan one thing. you'll have to elimiinate possibilities.
P and K build up or overfeeding can cause this, for example. If it fills in quickly not too big of a deal, but thise symptom is not normal and a sign of improper feeding even if it doesn't have too much of a negative repercussion unless it progresses and gets worse.
A small tweak will likely avoid it in future. It's worth figuring out, because why not? LOL, unless this is your last grow ever, it's always good to improve methods.
If you recently made drastic changes to your fertilizer formula or top-dressed soemthing with a tone of p or k, rethink that dose next time. Maybe a bit less p or k, etc. If in soil it's more of a guess. If this is soilless or hydro, then you simply keep K under 200ppm and P under 100ppm. Studies show there's no yield or potency impact from levels over ~190ppm for K and 40-60ppm of P. these are limited to strains tested so some genetic variety is still possible. more plants need to be studied.
P and K rely significantly on active transport to enter the roots. A protein is released dthat will bond with what is found near the roots and resulting concentration gradient will cause it to diffuse back across root memebrane with some P or K attached (specific proteins grab specific nutrient molecules). What this means is the plant only grabs what it needs. Roughly 1/5th can still enter from 'mass flow', so you can still overfeed p and k, but the mechanics of how most of it enters the roots is why you don't need to overdose them with it. The plant grabs what it needs for P and K in an active way. This is one of those long-standing myths that everyone repeats but it doesn't actually jive with reality. proof is in the pudding despite needing more study. neither yield nor potency benefits above a certain level. read the plant and keep it happy. all we can do.