Hey there two things: #1 over watering the plant is kind of drowning and it's causing the new growth to come out all wierd you can tell it's over watered from the "puffy" space in between the veins of the leafs #2 is pH micro nutrients are necessary to get strong stemps and solid growth and they get absorbed around 5.8/5.9 you're at 6.2 , doesn't look like much but it will cause problems over time. So to fix this follow a strict(er) wet dry cycle and try to get the pH down to around 6.0 if you can and the plant should make a full recovery ! Hope this helps ! 🚀