From 229bba14e6261142692bda7bba8bf5cdb7f325eb Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Mon, 5 Jul 2021 17:45:08 +0900
Subject: [PATCH] Fix master clock becoming incorrectly paused when all
 spectator players are too far ahead

---
 .../OnlinePlay/Multiplayer/Spectate/CatchUpSyncManager.cs      | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/osu.Game/Screens/OnlinePlay/Multiplayer/Spectate/CatchUpSyncManager.cs b/osu.Game/Screens/OnlinePlay/Multiplayer/Spectate/CatchUpSyncManager.cs
index 94278a47b6..cf0dfbb585 100644
--- a/osu.Game/Screens/OnlinePlay/Multiplayer/Spectate/CatchUpSyncManager.cs
+++ b/osu.Game/Screens/OnlinePlay/Multiplayer/Spectate/CatchUpSyncManager.cs
@@ -130,6 +130,9 @@ private void updatePlayerCatchup()
                 // This is a quiet case in which the catchup is done by the master clock, so IsCatchingUp is not set on the player clock.
                 if (timeDelta < -SYNC_TARGET)
                 {
+                    // Importantly, set the clock to a non-catchup state. if this isn't done, updateMasterState may incorrectly pause the master clock
+                    // when it is required to be running (ie. if all players are ahead of the master).
+                    clock.IsCatchingUp = false;
                     clock.Stop();
                     continue;
                 }