I was ripping a cd. One of the tracks looked like it couldn't come up with the right title (it still said Track 09). I went to edit the title but in the meantime the cd ejected. The title was correct when I looked at the rip anyway.
MusicBee v3.3.7367.39948Store (Win10.0), 3 Jul 2020 14:18:
System.NullReferenceException: Object reference not set to an instance of an object.
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at #=znQ9DV5UvK27Vb4I7sV9EXEU=.#=zAj0otR5R3inp.#=zBY9U0rs=(String #=zO3uKGTk=)
at #=z4rr1wBPPenWcyP4tFzB2X9FpkUyW.#=zs9M$ur$nVEE0(Object #=zNJBP6jk=, #=zEmAiGuMdK9P2oBC40GEU1thYeT2n #=z0k76sqY=)
at #=zgAYx8sBmDA$GgYwD_KkXBw8=.OnLeave(EventArgs #=z0k76sqY=)
at System.Windows.Forms.Control.NotifyLeave()
at System.Windows.Forms.ContainerControl.UpdateFocusedControl()