It's actually the middle of summer. I haven't had a cold night for weeks. The leaves just shriveled up and died, and two small shoots died off as well which freaks me out.There's no discoloration on the dead leaves, and photo #3 looks like exposure to cold temps. Is it possible you have a window cracked open too long? I've never done this with pot, but a lot of my house plants got killed or damaged this way, having people over, place gets too smokey, open the window for too long...and your pics remind me of that.
Yea i thought of dampening off as soon as i saw the stems but surely it doesn't start from the leaf tips.Is that stem soggy below wilted part in pic 3?