Hi @joaopmts,
Thank you for your patience as we have been looking into this issue further.
I spoke with the team today and we have been able to reproduce this behavior with the M11 we have in house and have identified what we believe is going on here.
When Roon starts playback to an Android zone, it uses the Android System Mixer to do so, at whatever it’s current rate is.
It appears that the Tidal app sets the System Mixer sample rate to 96kHz and it does not revert back when the app is closed.
Then when Roon tries to play back to the System Mixer zone, it receives the previously used sample rate.
Due to the way that Roon is architectured on Android, you unfortunately cannot switch the sample rate used, it will always get the last System Mixer values.
We’re working with Fiio to see if we can come to a solution, but we cannot promise anything at this point in time.