Pale patches split cleanly down a leaf on a CBD seedling look alarming but are usually a genetic quirk, not a virus or a deficiency. The plant grows a little slower because those sections do not photosynthesise, and that is the whole cost. How to tell stable variegation from the mottled pattern of an actual infection is explained on https://calmcbdseeds.com with photos side by side. I have run several variegated plants to harvest and the flower was no different.
