deformed growth

Hi guys, So I have been growing Incredible Bulk for a year or two, setup is Oxypot DWC in a large tent (previously in a small tent inside), lights are 2000w LED using Rock nutrients for feed. Every crop no issues, strong healthy plants. Consistently cloning for over a year no problems.. Ok so...

What's up people, I have one problem child right now. Her second set of true leaves grew in deformed and mangled looking and there are a bunch of tiny white hairs going up and down the stem. I hope the pics turned out right