Clones stems swelling ? Pics

My clones stems are kinda swelling, kinda at the lowest node... And losing color....
I'm pointing at it with the scissors in the top pic and in the bottom one you can see it where it's going into the rockwool...

Anybody know what's causing this?
They still have not rooted its been 6 days... They all look a little saggy 2

View attachment 3438518

The sag is lack of humidity possibly, and the node is swelling to make some roots pop out, they will pop out above the rock wool too, 6 days is not near enough time to know anything has happened yet, be patient and get some humidity around them.