Same here, problem is gone - thanks again for your excellent support!
Good morning, could I ask what fixed in staging means, does it mean it will be included in the next update. I tried to fix using command line but when I typed in the line /etc/apt/sources.list it was denied.
Yes – it will be fixed in the next update.
You need to prefix it with the name of an editor, like nano.
sudo nano /etc/apt/sources.list
Thank you.
Hi Sam!
Isn´t this fix included in the last update? I´ve played some m2ts dolby atmos demos yet and the problem is back…
This was fixed a while ago.
We would need to see some new logs.
Does this only happen with M2TS then?
Yes and only Dolby Atmos demo m2ts like my first post from november 2019… dts:x and thx demo m2ts works fine!
Can you try the staging repository?
To test this update:
- Login via the command line
- Edit the file
/etc/apt/sources.list - Add the following line:
deb http://apt.osmc.tv stretch-devel main - Run the following commands to update:
sudo apt-get update && sudo apt-get dist-upgrade && reboot - Your system should have have received the update.
Please see if the issue is resolved.
I also recommend you edit /etc/apt/sources.list again and remove the line that you added after updating. This will return you to the normal update channel.
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It works, perfect! 
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Great, thanks for confirming.
Thanks for the fast help!
I have the helicopter problem also and didn’t have before, Im running the latest osmc update, should I run the update by command line?
The helicopter demo has never worked properly on any release.
Yesterday I did the update as instructed by sam earlier and it resolved the problem, It resolved also the momentary black screen issue on playing m2ts files
The helicopter demo works now perfectly again.
With 4.9 kernel.
This issue seems to be back since the last update 
Since what update? If you are on the 4.9 testing kennel then you should be reporting issues in that thread.