Phantom Genre

Not sure I understand what you mean.  Can you show me a screenshot and provide some additional details?  Thanks!

Here is a screen shot, as you can see the genre Deep House 

but there is no Artist,  Album , etc. so i can't select anything to delete it.

@Jay > I see what you mean.  This is strange.  Try changing the genre of one track to Deep House.  It should then appear in this window.  Then change it back.  The Deep House genre should then disappear.