Reporting my Rhaphidophora tetrasperma and noticed yellow at the base by the roots..

Is my plant going to make it or is this the beginning of the end? I was repotting because it out grew the current pot and wasn’t growing as quickly. I cut back / trimmed sections that were starting to have dropped leaves. I water when the top 1/2-1 inch of soil is dry and there’s a humidifier nearby. The plant is next to a window and gets afternoon sun. Overall the plant looks great but I noticed the yellow at the base and am nervous.