Hi all, I've got a couple of pineapple clones in coco that are a month into veg, just flipped to 12/12. Some of the leaves have holes appearing between the veins, new growth and old are both affected. I cannot find any pests with magnification. The plants are otherwise very healthy and vigorous. I've searched every forum and source of info I can find but no answers have been found. I've found a few other people out there with the same problem and no one seemed able to answer them either. I should add that I've found a few water droplets on leaves despite the fact that I have not gotten any water on them. Here are some photos: Any ideas? Thanks.
A couple of the pics show what the leaves look like before the holes develop, kind of thin or worn looking between the veins.