Update, February 2, 3:10PM EST - With the Marshmello concert now complete, Playgrounds and Replay mode have now been re-enabled.
Playgrounds and the Replay Tab are now re-enabled. We appreciate your patience.— Fortnite (@FortniteGame) February 2, 2019
If you're wondering why you can no longer jump into Playgrounds or use Replay mode in Fortnite, don't panic, you're not the only one.
Epic Games disabled both modes temporarily, presumably for for the Marshmello concert even which is to took place in-game at 2pm EST on Saturday, February 2.
Replay mode was already disabled earlier in the same week, after players discovered it was possible to hear the music from the concert while watching replays.
Playgrounds and the Replay tab are currently disabled. All games are still being saved and will be watchable once this tab returns.— Fortnite (@FortniteGame) February 2, 2019
This time around though, Epic did not say that there are any issues with the modes, so presumably this was just a precautionary move.
Along with the Marshmello event, a special LTM (Limited Time Mode) was also mde available, aptly named 'Party in Pleasant Park'.
The mode will had respawn enabled, meaning that you don't have to be worried about missing the show because an opponent tries to spoil the fun.
Thankfully, any matches you play during the downtime will still be saved, and will be watchable once the replay mode is enabled again.
If you missed any of the Marshmello concert, you can watch it in full here.