What is FM 2015?
With splashscreens, check the paths in the config.xml. They need to be within the same directory as the rest of the project and not in a directory outside the project.
The splash screen is in the same path as the config.xml file. When I launch the app, a white screen briefly flashes (instead of the splash screen) .
What does the config.xml file look like? And which platform are you testing on?
Also, are you including the SplashScreen plugin in the config.xml file?
<gap:plugin name="cordova-plugin-splashscreen" source="npm" version="2.0.0" />