2nd auto grow

I would say that looks like some sort of bug to me, this is signaled by the straight line leading over a vein.

In all the pics I see definite signs of overfeeding! The burnt tips of ur leaves is a clear indication that shes being fed to much! In the first 3 pics I see tip burn( high tds indicator) and eagle clawing. Thd tip burn is a indicator ur feeding to much minerals. The eagle claw indicates nitrogen toxicity. I'd say give a good flush until ppm reads a lower more stable number! Than go light on the nitrogen from now on. In the other pics of the droopy plant I have to disagree with u on overwatering and say a combination of underwatering / ph problem and high ppm. Reason I say underwatering and not overwatering is that your leaves are curling upwards at the margin creating "cups" that's a sign of leaves trying to catch and retain water. A over watered plant will actually drop and curl its leaves down at the margin. To do the opposite and allow water to run right off the leaves in Hope's to not get even more saturated. It too shows signs of tip burn hence my opinion of high ppm value. And the twisted leaves to me look like ph issues. But the twist could be advancing eagle claw from nitrogen toxicity as well. Leaving the diagnosis of all plants . Too high ppm and nitrogen toxicity. And the droopy plant has also been under watered. Happy growing and stay lit fam.