That's where Im leaning if they dont perk up by stripping the fan leaves that was basically smashing them. Tried tucking but it wasnt working. Im only trying this out first because the other side I didnt take a pic of was way more exposed than the side in the photo and only 2 fan leaves on that branch look like the ones in the pic and they were the ones most suffocated by the fan leaf I stripped on that side. And the one in the pic was basically completely suffocated by the fan leaf I removed on that side.This is total guesswork on my part, but is it possible that you have managed to dry out a small part of your medium, damaging roots that feed those troubled branches?
I did take a peak down the sides of the pot and I brushed some surface soil away to see if I could see anything in easily accessible areas but everything I saw was evenly moist and the roots were all white and healthy, but I suppose if they died off and the soil was remositened it would be almost impossible to see damaged or dead roots, also theres obviously a lot of area thats impossible to check.
Im thinking about using my fox farm sledgehammer on my next watering because its the only form of yucca I have right now. But if theres any hydrophobic pockets in the soil that should help with that but I just watered yesterday with a full feed since Im a month in and the nutes in the soil should be pretty used up or washed out by now.