From ae9f08f387dc26ca63eea7e09507e0ed9d4eded0 Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Wed, 27 Dec 2017 11:47:04 +0900
Subject: [PATCH] Fix crash in editor when trying to seek on a virtual track

---
 .../Edit/Components/Timelines/Summary/Parts/MarkerPart.cs       | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/osu.Game/Screens/Edit/Components/Timelines/Summary/Parts/MarkerPart.cs b/osu.Game/Screens/Edit/Components/Timelines/Summary/Parts/MarkerPart.cs
index 367cf4337d..b2308aca71 100644
--- a/osu.Game/Screens/Edit/Components/Timelines/Summary/Parts/MarkerPart.cs
+++ b/osu.Game/Screens/Edit/Components/Timelines/Summary/Parts/MarkerPart.cs
@@ -47,6 +47,8 @@ namespace osu.Game.Screens.Edit.Components.Timelines.Summary.Parts
             if (Beatmap.Value == null)
                 return;
 
+            if (Beatmap.Value.Track.Length == double.PositiveInfinity) return;
+
             float markerPos = MathHelper.Clamp(ToLocalSpace(screenPosition).X, 0, DrawWidth);
             seekTo(markerPos / DrawWidth * Beatmap.Value.Track.Length);
         }