I'm not sure if this is more appropriate to the paint forum or the windows forum. I'm wondering if I should try a different paint. I am having problems with the brick moulds around some of my windows. Somehow, excess moisture is getting in at the bottom corners. I've checked everything I can think of. I've caulked, I've looked for weep holes I may have covered, you name it. Plus, it's only the windows I've repainted on the northern exposure. The one remaining set of windows on the northern exposure,
as well as the other windows on the house, are doing just fine. The repainted windows were fine before being repainted. The problem only occurs when it rains; I know the problem isn't from moisture in the house. The only other thing I can think of is the paint. I used an exterior latex primer/sealer and a latex topcoat. I put two coats of this primer on bare wood, and at least two coats of topcoat. I used Behr Premium Plus and the recommended Behr primer. Is it possible it can be letting all of this moisture in, or just not letting moisture out fast enough? I'm not having problems anywhere else I've used this paint. Also, the windows are double-hung, wooden windows, with a plastic guide in the window jambs. The windows themselves are fine. It's just the brick mould and a piece between it and the plastic guide. There's one other thing. Inside the house, adjacent to the bottom corner having the most problems, there is a vertical crack in the drywall below the window sill and apron. I pulled the apron out to check for problems, but didn't see any. I'm assuming it's due to the excess outer moisture.

Any helpful suggestions are appreciated. Thanks.