[jdig4240]

Ran a test with no advancedsettings.xml and same result.  Specific on setup wiz 3/9 configure language and region when the language or region select dialogs are open the notification pops up. 

I see that after setup wiz 9/9 when  Configure refresh settings yesno "yes" is selected, then regardless if you select Yes or No on the follow on "are you sure" it takes you back to the initial setup wiz.

To clarify the test with no advancedsettings.xml was to allow a log file to be produced that logged the settings that were being changed. Was hoping to see why the settings values were not being updated.

In any case I think I can see what the problem may be - the addon service, plugin and script invocations were geting out of sync with whatever Kodi was writing to the filesystem when a settings value was being updated. Should be fixed in https://github.com/anxdpanic/plugin.vide...0%2Bbeta.3

 

PLAY should be the first item n the context menu but it's missing.

Maybe. While some operating systems have the default selection action in the context menu (usually first in the menu and bolded or otherwise visually distinct), many don't and it also not consistent across different applications. Kodi itself doesn't do this as an example. The context menu for this plugin is already overcrowded with too many options, so I am not likely to add the default selection action to the context menu as it it a bit redundant and takes up space from the other options. If you want to play something from the context menu, you can use "Play (Ask for quality)" and just select the default/first item in the select dialog.

 

when I tried setting up an API key following YouTube’s steps (by typing in the three keys and following the Google/device authentication), I got a "congratulations" message on my phone, but then an error appeared: "Invalid client, error description: The OAuth client was not found (Code 401)."

The error message means that the OAuth details have not been created or entered correctly. Try following the steps detailed here again. https://github.com/anxdpanic/plugin.vide...issues/439
 

Does adding an API key pull in my YouTube subscriptions into the app automatically?

An API key is used to allow browsing various parts of YouTube. The OAuth credentials are used to login and access your own account information such as subscriptions.

If you don't want to login, then only an API key is required. If you want to access your account then OAuth credentials are required.

Previously you didn't need your own API key for browsing or logging in, but there are consequences when too many people take advantage of a shared resource like this. Now, while some things may still work without it, it seems like you will need your own API key for logging in and browsing.
 

The only way this works at all now is by making API keys correct? Is the 2 Login process supposed to work or not? Or are you still supposed to enter API keys even just to use the Youtube login option?

See explanation above.
 

Seems now, even trailers are not working anymore. Error "Please login to confirm your not a bot" message even with trailers in info screens.

This is not specifically related to the other issue. Playing trailiers should still work. Are you sure you are using the latest version of this plugin? Will need a debug log to investigate further.

 

Using the solution with the new endpoint the skin displays a default background as a fallback solution when the virtual keyboard opens. I would like it to display a YouTube wallpaper.

This is not straightforward to do from the plugin, but you should be able to do this from the xml for the keyboard dialog with a check for Container.PluginName or Container.FolderPath

Ok, looks like it gives the bot error when Nord VPN is on, without VPN it does play but shows "The caller does not have permission", but still plays. My bad, never had the issue before with my VPN, but makes sense.