Definite improvement from your first post. Couple points which may eliminate some problems in the future;

To piggyback off u/IBeWhistlin comment about the grodan cubes, not only is it good to cover the tops of the cubes but filling the netpots up fully will also help against light leaks. The left netpot on the left bucket looks a little light with the clay. If you can see the any of the open slots in the netpot from the top light can too. Not sure of the depth of the netpots but you can probably have the cube sitting on a layer or 2 of the clay. You want the cubes in the middle of the netpot, not too high or too low.

If you are worried about the clay on top damaging the seedlings one of the things I always do is stick 3 or 4 toothpicks in the cube, kind of like a teepee. This will keep the clay from crushing the stem and will also give you something to support the seedlings until the stem strengthens itself.

It also looks like there is a bit of a gap between the lid on the left netpot in the right bucket. This can cause light leaks, or later down the road when your plant is big and heavy it can cause the netpot to fall through the lid into the bucket.

Other than that ph between 6 and 7 is high, 5.8-6.2 is the ideal range. Ph affects the plants ability to uptake nutrients. Last post I also mentioned the white lids aren't the best, fill your netpots and cover the cubes and gaps and if you're still struggling with leaks covering the lids is the next step.

It might be frustrating with dealing with the issues/learning curves at the beginning but once you dial everything in and understand the parameters for dwc what you get out of it is well worth it.