It's my first hydroponic planting. Cookie R2 has 9 nodes in total (I even thought it would die) The biggest mistake is making the cold water alternate to normal temperature, causing the plants to stunt. I thought for a long time that the trunk was so small.
She looks ok.
Bit stressed from under/overwatering.
Healthy tight inters
Main thing its an easy recovery and it shouldn't hinder the buds quality, I know you said it stunted but, that'll only affect yield as you know.