Permission to play files denied

When I try to play the list through mp3tag, I get the following error:

mp3tag_permissions

Not sure when it happened but I was able to do it using older versions of mp3tag. I'm using AIMP as the default player.

Does anybody know how to fix?

Thanks

You would have to check the access rights for that temporary folder.

Even when showing "Hidden Folders" option, there is no "\Mp3tagv3.27a\mp3tag.m3u" folder inside the Temp folder. It stops at the Temp folder.

It's almost as if it wants to write to the Temp folder but is blocked from doing so. Does that sound right? Yes?

Could you describe how you try to open that non-existent file?

That sounds strange to me and I think you don't have a clean installation of Mp3Tag.
Are you really using Mp3Tag under a user name "admin"?
Is it a portable installation?

M3Tag uses this temp folder for portable installations.

I'm just speculating as to the cause and am absolutely not sure if I'm right:
You start Mp3Tag under an account with administrative rights from another user account. Mp3Tag uses this temporary path to which your standard player has no access rights.
Maybe @Florian can correct me or confirm.

I don't believe this is a portable version. It's been in the same place "C:\Program Files (x86)" location for the last 5 years.

How can check I check to see if it's (accidentally) portable or not?

See the function in Menu Help>About

Capture

That shows that it is no portable installation.

Which leaves the request

The file mp3tag.m3u is not a folder, it's a (playlist) file inside the folder \Mp3tagv3.27a
Does it exist at all?

I drill down through Windows Explorer to the Temp folder in question. I open the Temp folder and no file called "\Mp3tagv3.27a\mp3tag.m3u" exists inside the Temp folder.

I have the "View hidden folders" option checked, so I can see if there are any hidden folders in there.

Does the folder C:\Users\admin\AppData\Local\Temp exists?
Does the additional subfolder \Mp3tagv3.27a exist?
Does the file mp3tag.m3u exists?

Yes

No

no

And in addition to @ohrenkino's question:
How exactly do you create this playlist file mp3tag.m3u (that should be written into the above path)?

I open up mp3tag to a music folder (for an album) and I see the files in the main mp3tag window. I hit Ctrl +A to select them all. Then I right mouse click the selection and select "Play"

I've been doing it that way for years with no problem. But now when I try to do that, I get that error in the 1st post up above

TBH, I didn't even know that Mp3tag creates a temporary playlist file in \Mp3tagv3.27a in the local temp folder %localappdata% to open the default player.
(This folder and the content will be removed immediately after closing Mp3tag).

It seems that Mp3tag can't create this \Mp3tagv3.27a folder anymore due to an access rights problem.

If you right click on the \Temp folder and then look at the Security tab, what users can access this folder?

It looks to me like you try to access the user-settings folder of a different user-id.
The best way to use MP3tag is to install it under the same user-id as which will use it in the future.
Are logged into Windows under the user ADMIN when you use MP3tag?

I only use the one profile and have been doing that for years. Nothing has changed on that end.

The ADMIN is a generic name so my real name or any identifying name or ID won't be seen in posts like this for privacy reasons.

Then let me ask this in a more general way:
Is the user-id that uses MP3tag the same under which MP3tag has been installed?

In these cases you should use something like "username". Using admin is misleading as you can see from my previous answer.