I've had this plant for a handful of years, this year I've lost a lot of stems and several stalks to yellowing/wrinkling, but this is the first time I've come across this. I can't tell you more than what's in the picture. It's deforming where the spots are, making the green area around it protrude and the green areas around that area thin and almost mushy. I've never seen any of my other stalks do this so I'm not entirely sure as to where to go from here. Any tips or advice?