We have received some reports of problems with the Android app for Android 7+. Upon investigation, we did indeed find an issue. The symptoms of the issue include devices not connecting (perpetually in blinking green state) and Android will give you warnings that the App is not responding.
We have fixed the issue and will be releasing a new version to the Play Store very soon. In the meantime, we are making a signed copy of the app available for anyone who needs it fixed quickly. The new version can be downloaded and installed from here: http://resources.bluz.io/bluz-android-app.apk