r/luckybamboo

Does anyone have any idea why the middle of my bamboo is yellowing? The base seems fine. I haven’t made any changes

My stalk has been like this for like 6+ months, idk why. The yellow is still hard, but no roots grow above it? I have its daughter plant in the same pot and it’s thriving. Do I just cut that section off and try to re-root? Do I then need to remove my leaves? Thank you!