Bluetooth is more important than ever since the demise of the headphone jack and the rise of the smart watch. However, according to an Android Police report, it may be the cause of recent Android notification bugs.
Some of the reported problems include duplicate notification sounds, odd volume control operation that matches ringer and media volumes, and clingy notifications that come back even after swiping them away. Worse yet, some notifications seem to ignore Do Not Disturb or silent ringer settings. Specific apps reported to have the issue include Facebook and Instagram, but the problem extends system-wide for some users.
The issues can pop up if your handset is connected to a smart watch or wireless headphones. So far, news outlets have reported problems with Google Pixel devices, the Samsung Galaxy S9, Note 9, and A5, as well as a OnePlus 6T. Bluetooth devices mentioned include the Galaxy Watch Active and Bose QC35 headphones. The issue may also extend to other phones and accessories.
One solution offered by Google support is to unpair your Bluetooth device and reboot the handset, but apparently the problem will reoccur if you pair the devices back up.
Google’s Android issue tracker currently shows an employee is assigned to fix the problem. Hopefully the fix arrives before too long.