Wish I could be of some help. Instead, I am having the same problem with my newly divided Drep. khasianum. It's a fairly large division with about 10 tall canes. I've put it up in a very large container, Gardener's Gold organic potting mix, no extra fertilizer, and it is getting daily watering and misting. It's on the northeast wall of my house which is getting morning sun only.
Wondering whether it's just a little stress or whether I might be doing wrong.

i have one bisseti doing the same thing i Just recently tranplanted it. I assumed it was shock .

I get burnt leaf tips with too much water, particularly with my bambusas

I live in Berkeley and I get leaf tip burn when it's super windy here, maybe that's whats happening since I know it's been windy here? Just a guess