I found the culprit – bp_core_load_template(), in bp_example_screen_settings_menu(), is pointed toward the wrong template. It should read:
bp_core_load_template( apply_filters( 'bp_core_template_plugin', 'members/single/plugins' ) );
I’m going to make this adjustment, as well as a few others, and release a slightly updated version of the Skeleton Component. In the meantime, please let me know if you find other problems.