Elytra gliding sound can keep playing when it shouldn't

When you're gliding with an elytra at a sufficient amount of speed, the gliding sound can keep playing when it should stop instead when:
-entering the end portal after defeating the ender dragon for the first time; the gliding sound keeps playing during the credits
-pressing the assigned button to open the advancements; the gliding sound keeps playing while the advancements window is open