Music App doesn't play anymore on double click

Hello there.

The title says it all.
I used to open music files on double click with the Music App installed in Windows. I liked that.
But now it doesn't do that anymore, it just shows me empty crap when I'm offline and doesn't play automatically anymore. Why? They changed something after an update or what?

Does anyone has an idea about this? Thanks anyway.
Maybe I'm missing something...

Regards
Hopachi

Still nothing....

I just don't trust those apps who change in behavior.
The Music App must have indexed all the contents in the music folder because the first time I've used it (when double click - play worked), there was no folder or file in list.

That must be the explanation but still: play on double click should be kept for user choice and I don't like that it's removed.