Q.Polka dot and nerve plants withering
My polka dot and nerve plant are withering and I’m not sure why. They are kept in a room with lots of light and a heater so they don’t get cold and I mist them daily but they’ve looked like this for weeks so I’m not sure what I’m doing wrong. They experienced some cold shock when I got them and they haven’t really recovered

Certified GKH Gardening Expert
I would cut away the damaged or dead leaves. Then read the articles below to see if you are following the proper care for these plants. If the plants were in the cold for a sustained time, they may never recover. Only time will tell.
https://www.gardeningknowhow.com/houseplants/nerve-plant/growing-nerve-plants.htm
https://www.gardeningknowhow.com/houseplants/polka-dot-plant/growing-polka-dot-plants.htm