Q.Indoor Hawaiian Ti Plant Issue
I have a Hawaiian Ti plant that I started from a log approximately 40 years ago. It is kept indoors and was re potted in the Spring 2017. It sits in front of a window that gets indirect sunlight in the afternoon and evenings. The plant is about 4 feet tall. Three offspring about 9 inches tall surround the plant which sprung up during the summer. The main plant leaves have started turning brown and are dropping off to the point that few leaves are left. What do I need to do to save it? Is this going to affect the offspring?

It could be that the original plant has lived its life in a confined space. Remove the dying growth, and keep caring for the young. They should replace the larger plant. Here is an article on their care: https://www.gardeningknowhow.com/houseplants/ti-plant/growing-hawaiian-ti-plant-indoors.htm