I repotted my Chinese evergreen. It had about 13 stalks. I gently removed 6 of those to repot in another pot. But my plant's lower leaves are turning yellow and dying. The problem is moving up the stalk.
There can be some stress to plants following repotting.
Make sure that you used a well draining commercial potting soil and pot size was chosen that comfortably held the roots with just an inch extra space.
To large of a container will lead to root rot.
Check the soil before watering. Make sure the top inch or so has dried before watering again.
Chinese Evergreen will also turn yellow if they are too cold.
Here is a link to refresh you on the care requirements.