[Android Head-Units] okij:
I now further investigated this issue and it's not fixed yet.

This is what I found out:

The "Not Provided" is shown in the Player widget when my phone (which is connected to the head unit via Bluetooth) plays a system sound, e.g. the camera shutter sound or the video start- and end-sound. This is the reason why I saw "Not Provided" quite often while taking videos for you, but not yesterday when I took the logcat in my previous post for you, because then I didn't take pictures and videos. Please also note that the letter "P" in "Not Provided" is upper case, which might me the reason that it is not blocked by test123 but still shown, please see in the 1st attached video.

This issue does not only happen when NavRadio+ is the active player, but e.g. also when DAB-Z is playing, as you can see in the video.

The playing is not interrupted and the system sound can not be heard, so it just interferes with the Player widget display but not with the playback in general.

The same issue happens when I use a media app on my phone to play some music. As you can see in the 2nd attached video, DAB-Z is playing "Love again" by Dua Lipa. Then I start GMMP on my phone to play "Back To Black" by Amy Winehose, which results in this title to be shown in the Player widget, but not being played. So the DAB-Z sound of "Love again"can still be heard, but the Player widget display only shows it again when selecting DAB-Z again, as you can see at 0:00:04 in the 2nd video.

This issue happens regardless if I have the usage of a 4th player activated in the Player widget settings (which I usually have) or not. I double checked this.

I again took a Logcat and attached it for you.

Please look for occurences of "Not Provided'', which I found several times like this:

01-23 11:36:36.165 30647 30647 E goc : *****************song info*************************
01-23 11:36:36.165 30647 30647 E goc : name : Not Provided
01-23 11:36:36.165 30647 30647 E goc : artist :
01-23 11:36:36.165 30647 30647 E goc : album :
01-23 11:36:36.165 30647 30647 E goc : number of media : 1
01-23 11:36:36.165 30647 30647 E goc : total of media : 1
01-23 11:36:36.165 30647 30647 E goc : playing times : 0 ms
01-23 11:36:36.165 30647 30647 D goc : GOCSDK_AVRCP_INFO
01-23 11:36:36.165 30647 30647 D goc : send_ind: [MINot Provided���0�1�1]
01-23 11:36:36.165 30647 30647 E goc : *****************song info over********************

And please look for occurences of "Back To Black", which I found several times like this:

01-23 11:41:08.447 30647 30647 E goc : *****************song info*************************
01-23 11:41:08.448 30647 30647 E goc : name : Back To Black
01-23 11:41:08.448 30647 30647 E goc : artist : Amy Winehouse
01-23 11:41:08.448 30647 30647 E goc : album : Back To Black (The Deluxe Edition)
01-23 11:41:08.448 30647 30647 E goc : number of media : 5
01-23 11:41:08.448 30647 30647 E goc : total of media : 18
01-23 11:41:08.448 30647 30647 E goc : playing times : 241000 ms
01-23 11:41:08.448 30647 30647 D goc : GOCSDK_AVRCP_INFO
01-23 11:41:08.448 30647 30647 D goc : send_ind: [MIBack To Black�Amy Winehouse�Back To Black (The Deluxe Edition)�241000�5�18]
01-23 11:41:08.448 30647 30647 E goc : *****************song info over********************
01-23 11:41:08.469 30647 30647 E goc : callback_streaming : the same to last
01-23 11:41:08.470 30647 30647 E goc : send stream start
01-23 11:41:08.470 30647 30647 D goc : a2dp 5557 B/s

But also like this:

01-23 11:42:31.874 463 463 I BlueToothService: BC6 BT read:
01-23 11:42:31.874 463 463 I BlueToothService: BC6 BT read: MIBack To Black�Amy Winehouse�Back To Black (The Deluxe Edition)�241000�5�18
01-23 11:42:31.912 463 477 E NotificationService: Suppressing notification from package by user request.
01-23 11:42:31.932 27568 27568 D Fcc_Service: mtcKeyReceiver. Fcc |||||||||||| action = com.microntek.bt.report || keyCode = 0 || currentMediaState = 62

So I would like you to remove the blocking of "Not provided" again from the Player widget and fix the real cause of this issue. :)

BTW, I just saw in my phone settings that in the Bluetooth profile of my head unit "Audio" is currently not activated, which could be the reason that it didn't play when I did the above tests. But then it also should not interfere and display anything in the Player widget. I'll do another test with "Audio" activated and report back how it behaves then.

Edit: OK, I now did a test with "Audio" in the Bluetooth profile activated, with the following results:

System sounds of the phone are still not played via the head unit (which is good), but "Not Provided" is still shown in the Player widget, which is a bug.

Music on the phone is then played via the head unit (which was expected), but only after the A2DP app has been manually started, which then appears as 4th player in the Player widget.

If A2DP is not started and music playback is only started via the phone, still the artist and title are displayed in the Player widget, but DAB-Z (or any other active player) keeps playing, which is a bug.

Even when A2DP is active, it can only be controlled via the A2DP app on the head unit, as the media control buttons of the Player widget are not working, which is a bug.

So IMHO the following bug fixes are necessary:

Only show media infos of A2DP in the Player widget when A2DP is actually active and in use.

Never show media infos of phone system sounds like "Not Provided" in the Player widget, no matter if A2DP is in use.

Allow the Player widget to control the A2DP app with its media control buttons, which currently isn't working.

Please let me know if you need any more infos or testing.