Unable to select S2 as default music app

[Slivo-fr]

🌎 Environment

• Environment: Prod
• Device: Oneplus 5T
• OS: Android 10, Oxygen OS
• App Version & Build: Not sure where to find that out
• Possible Cause: No idea

💬 Description

S2 doesn't seems to properly register as a music (media?) with android
I'm unable to set the app as default music players, and some other apps doesn't list S2 as a possible music app

Shuttle 1 was showing up properly, this other project does too if that helps

📸 Screenshots

[timusus]

@Slivo-fr can you suggest an app I can use to test whether this is working? What is the app in the screenshot?

[Slivo-fr]

Good evening, I'm not even sure what I tried back then :/
Most likely it wasn't showing up in https://play.google.com/store/apps/details?id=maderski.bluetoothautoplaymusic when shuttle was or something.