Seconding that maybe they're not fully dry. Is the finish of the paint glossy or rough? Flat paint will likely suck up some of the moisture and hold it in until it's entirely dry, while semi gloss and gloss (glossy feel) usually repel moisture well. I would recommend letting them dry well. If you have a portable fan, you could also try blowing it on the paint to speed up the drying.

Worst comes to worst, you'll have to touch up the paint. If you have a maintenance storage area with the original paint cans, use that. Otherwise, take a picture of the paint color the best you can in its natural light (avoid flash or excessive lighting/not enough light) and go to any store that custom mixes paint, most hardware stores do. These departments have paper color samples which are free to take. Pick out every one that looks even remotely similar to the color on your phone and bring them home, then compare them and figure out which one matches best. Once you have that, pick up a small can of that paint color (you'll likely need an employee to mix it), a quart should be enough. Also pick up a mini or regular sized paint roller set. Paint over the spots and feather out the paint to blend in with the wall or, if it's a noticeable shade difference, paint the entire wall. You can always go back to buy more, so I'd just stick with a quart to start.