Just tested this doing the ini modifications here: https://developers.google.com/vr/unreal/daydream-in-unreal#setup_a_daydream_splash_screen_for_your_application
so not using loading a blank level first to call the blueprint nodes and it worked! 
Just tested this doing the ini modifications here: https://developers.google.com/vr/unreal/daydream-in-unreal#setup_a_daydream_splash_screen_for_your_application
so not using loading a blank level first to call the blueprint nodes and it worked!