Help

For the last couple of days I have been painting the default 737 and I have a pretty good idea to get a general paint on the plane and put it into fsx and I noticed at night the 737's tail is nearly or is unreadable. If you don't look close it just looks white but if you look close enough you might be able to see the paint. So I just thought it was my painting but I noticed on the PMDG 747(which is my next project) that the logo light and landing light don't blur out the paint. Is there something wrong I am doing or is it just the aircraft and when paint the pmdg 747 it wont do that. Anyone else find out that it does it to other default aircraft?Taylor Oldham