[Samsung Gear S3] Bluetooh Headphones Volume Control in Spotify App not working

[Metal128]

Plan

Premium / (App set to standalone, Device synced to spotify connect)

Country

Germany

Device

Samsung Gear S3 Frontier  + Powerbeats Pro

Operating System

latest firmware on Phone and Headphones

My Question or Issue

Volume control with Bluetooth Headphones in Spotify App on Gear S3 does not work.

Request to make a song louder or quieter is ignored from spotify app only.

It was working until the update of the spotify smart watch app a few weeks ago.

Additonals Info:

- Volume control works great with latest spotify app on Samsung Galaxy S7 Edge.

- Volume control works great with latest spotify app on Iphone 6S.

- Volume control works great with Samsung Music App on Gear S3.

- App re-installed on smartwatch. Reseted Headphones + resynced to smartwatch

-> No improvement

- Song forward / song backward works (Pause/Play was never working, but didnt bother me...)

Best Regards