I am not certain why you muted the tied-from note; I would think you want that to sound.
Me too, but if that note is unmuted, that note (F5) stops sounding when the glissando is already at G4, overlapping part ot the glissando.
Note On: F5, Velocity: 110
Note On: E5, Velocity: 110
Note On: E5, Velocity: 0 = Off
Note On: Eb5, Velocity: 110
Note On: Eb5, Velocity: 0 = Off
Note On: D5, Velocity: 110
Note On: D5, Velocity: 0 = Off
Note On: Db5, Velocity: 110
Note On: Db5, Velocity: 0 = Off
Note On: C5, Velocity: 110
Note On: C5, Velocity: 0 = Off
Note On: B4, Velocity: 110
Note On: B4, Velocity: 0 = Off
Note On: Bb4, Velocity: 110
Note On: Bb4, Velocity: 0 = Off
Note On: A4, Velocity: 110
Note On: A4, Velocity: 0 = Off
Note On: Ab4, Velocity: 110
Note On: Ab4, Velocity: 0 = Off
Note On: G4, Velocity: 110
Note On: F5, Velocity: 0 = Off
Note On: G4, Velocity: 0 = Off
Note On: F#4, Velocity: 110
Note On: F#4, Velocity: 0 = Off
Note On: F4, Velocity: 110
Note On: F4, Velocity: 0 = Off
Note On: E4, Velocity: 110
Note On: E4, Velocity: 0 = Off