From 7499d3f989681f236e83aa8c82d8e7f308708053 Mon Sep 17 00:00:00 2001
From: MikeTheWatchGuy <mike_barnett@hotmail.com>
Date: Fri, 28 Jun 2019 16:56:25 -0400
Subject: [PATCH] Fix for crash when opening window twice with ComboBoxes

---
 PySimpleGUI.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/PySimpleGUI.py b/PySimpleGUI.py
index fb34ac83..d50534c9 100644
--- a/PySimpleGUI.py
+++ b/PySimpleGUI.py
@@ -7130,7 +7130,11 @@ def PackFormIntoFrame(form, containing_frame, toplevel_form):
                     # print(unique_field)
                     # Clones over the TCombobox.field element from the "alt" theme.
                     # This is what will allow us to change the background color without altering the whole programs theme
-                    combostyle.element_create(unique_field, "from", "alt")
+
+                    try:        # if this element is in a window that's shown TWICE, will get an error here, so skip error
+                        combostyle.element_create(unique_field, "from", "alt")
+                    except:
+                        pass
 
                     # Create widget layout using cloned "alt" field
                     combostyle.layout(style_name, [