Hi there, I was having the same problem. Seems like it just ignores the configuration options for full width, sidebars, etc sometimes. I added the following custom CSS under Appearance > Theme Options > Layout:
.page-template-template-no-sidebars-php #wrapper,
.page-template-template-blog-no-sidebars-php #wrapper,
.page-template-template-portfolio-no-sidebars-php #wrapper {
max-width:1140px;
}