Unexpected paint peeling only on one wall after repainting my living room

I recently repainted my living room, which has four walls, using the same brand and color of paint on all of them. The room is about 12x15 feet, and I used a semi-gloss finish. After about two weeks, I noticed that only one wall - the one with the large window - has started peeling slightly at the bottom near the baseboard. The other walls look perfect, smooth with no issues. The peeling spots are small but definitely visible, and I haven’t had any moisture problems or leaks that I know of. I cleaned and lightly sanded all the walls before painting and made sure to apply two coats evenly. The weather has been dry and mild since I painted, and I haven’t used any different cleaning products on that wall. Has anyone experienced paint peeling just on one wall like this? What could cause peeling only in one spot when everything else seems fine? Should I try to scrape and repaint, or is there a deeper issue I might be missing?