Ok so, I've this this Hoya for a bit and she's been repotted a couple times. Not too long ago, she had one new leaf come in (the very top one). The leaves closer to the top feel alive (if that makes sense) and have spots. Meanwhile, the lower leaves feel thin and kinda papery. Why? And what should I do? Also, ignore the dust- I need to give my plants a dusting- I just keep putting it off...
