My dieffenbachia grows leaves, however they stay curled. What’s wrong?

Question

I tried moving it to another location; it has been going for years. I don’t have a photo

Answer 1

Did moving the plant to a new location help?
Here are things to check for:
Spider mites, aphids or other sucking insects; treat with insecticidal soap.
Low humidity
Low light
Over or underwatering
Here is a link to the proper care of dieffenbachia that should help:
https://www.gardeningknowhow.com/houseplants/dumb-cane/growing-dumbcane-dieffenbachia.htm