- /e/OS version: 3.4+ (a15), currently 3.5-a15-20260211580868-official-emerald - Device model(s): Murena Teracube 2e - Impacted Application: all audio applications ## The problem Since /e/OS 3.4 (which upgraded my Teracube 2e from a12 to a15) I cannot control the volume of my bluetooth loudspeakers from my phone anymore. Visually the volume bar moves correctly in the UI, but in reality the loudness does not change. Lowering the volume to zero still mutes the speakers, but everything above has the same volume. Bluetooth volume control was working fine until /e/OS 3.3. **Steps to reproduce** - install /e/OS 3.4 or newer on a Teracube 2e - connect to bluetooth loudspeakers - play some music (e.g. with VLC) - try to change the volume using the two buttons on the right side of the phone - notice how the volume stays the same, except for muting <!--Add the labels corresponding to your issue by adding a tilde and typing the name of the label you think apply to your issue in the line above. You need to type a tilde before the name of each label you want to apply to the issue. -->