diff --git a/changelog.txt b/changelog.txt
index 4c5c395..101f02a 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -58,5 +58,5 @@ Date: 2020-11-28
     - Added menu/gui to save and load squad configurations
     - Added Spidertron link tool (Link squads to an entity)
     - Added mod option to override the default tool/remote given by shortcut
-    - 3NOTICE: THIS VERSION IS A WORK IN PROGRESS - CHANGELOG IS NOT FINAL
-    - 4NOTICE: THIS VERSION IS A WORK IN PROGRESS - CHANGELOG IS NOT FINAL
+    - Added mod option to disable player alerts
+    - _NOTE: BETA RELEASE - USE AT YOUR OWN RISK!
diff --git a/control/player_select.lua b/control/player_select.lua
index 2e09f68..60bc622 100644
--- a/control/player_select.lua
+++ b/control/player_select.lua
@@ -42,7 +42,9 @@ end
 local function unitNumbers(entities)
     local ids = {}
     for i = 1, #entities do
-        ids[#ids+1] = entities[i].unit_number
+        if entities[i].valid then
+            ids[#ids+1] = entities[i].unit_number
+        end
     end
     return ids
 end