HI.
I've just installed this module, and when I ran the example snippet:
this.$OneSignal.push(() => { this.$OneSignal.isPushNotificationsEnabled((isEnabled) => { if (isEnabled) { console.log('Push notifications are enabled!'); } else { console.log('Push notifications are not enabled yet.'); } }); });

It is similar to #6, but in the I don't see duplicated OneSignal scripts, but two different ones.
Would you know what is potentially the problem?