There's a trap defined in the Dungeon Master Guide on page 91 called Spectral Tendrils.
The Hit line of the trap's attack says:
Hit: 2d10 + 6 necrotic damage and dazed until the end of the target's next turn.
Aftereffect: Dazed until the end of the target's next turn.
Aftereffects occur after an effect that a save can end ends. There's no effect that a save can end here. Is it supposed to be "dazed (save ends)", or are they just dazed for two turns?
I checked UpdateDMG, and there's no errata for this trap.