Zacarias

Naz, cut banana leaf sheaths (on the stem) will often have areas or brown, tan, and just not look that great especially after shipment. Your Sikkimensis looks fine. Do not overwater at this time.

Rot that is concerning is when the pseudostem has black, moist, mushy areas. If new leaves are growing and there's no rot in the center, you will be fine. Also, remember when you slice off a banana, the very top will turn kinda light brown with sap. As the banana leaf pushes through, then you'll see the green.

Z