From 7b59a205b8bfe7627695c2a62e2378e0630d115f Mon Sep 17 00:00:00 2001
From: Leon Friedrich <60421075+ElectroJr@users.noreply.github.com>
Date: Thu, 2 Dec 2021 23:51:30 +1300
Subject: [PATCH] check if instrument window is disposed before playing (#5655)

---
 Content.Client/Instruments/UI/InstrumentMenu.xaml.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Content.Client/Instruments/UI/InstrumentMenu.xaml.cs b/Content.Client/Instruments/UI/InstrumentMenu.xaml.cs
index 98631bba8e..3ef9492cd3 100644
--- a/Content.Client/Instruments/UI/InstrumentMenu.xaml.cs
+++ b/Content.Client/Instruments/UI/InstrumentMenu.xaml.cs
@@ -79,6 +79,10 @@ namespace Content.Client.Instruments.UI
             var filters = new FileDialogFilters(new FileDialogFilters.Group("mid", "midi"));
             await using var file = await _fileDialogManager.OpenFile(filters);
 
+            // did the instrument menu get closed while waiting for the user to select a file?
+            if (Disposed)
+                return;
+
             // The following checks are only in place to prevent players from playing MIDI songs locally.
             // There are equivalents for these checks on the server.