I have an Elsete ventricosum which I overwintered in my workshop. The frosts are over so I have brought it outside in its pot, but it seems slow to get going. After removing the leaves that had died during the winter, it started pushing up a new leaf but after 6 inches it has buckled over. There is another leaf forming inside but this also looks malformed. I have attached a photo. Any ideas anyone? Root disease? Malnourished? Bugs? (Can't see any).

Also, I remove the dead leaves but never sure how far back to cut. As you will see, there is now a lot of black dead material around the stem. Should this be removed and if so, how far? Do I expose the green stem?