Blink - I usually see those kind of leaves when a cutting gets too droopy and then recovers. If I think a clone is ready to leave the dome, and then come back to find it bent in half and droopy, it will usually recover by misting it and putting it back under the dome, but some of the leaves never recover and just get crispy like yours. I trim the dead leaves as soon as the clone is living on its own outside the dome.

PC :smokin: