diff --git a/src/accessories/CleanUpHelper.ttslua b/src/accessories/CleanUpHelper.ttslua
index 324383f8..428cf377 100644
--- a/src/accessories/CleanUpHelper.ttslua
+++ b/src/accessories/CleanUpHelper.ttslua
@@ -279,7 +279,7 @@ function tidyPlayareaCoroutine()
   else
     for _, obj in ipairs(playAreaZone.getObjects()) do
       -- ignore these elements
-      if obj.hasTag(IGNORE_TAG) == false then
+      if obj.hasTag(IGNORE_TAG) == false and checkMemo(obj) == false then
         coroutine.yield(0)
         trash.putObject(obj)
       end
@@ -312,7 +312,8 @@ function tidyPlayerMatCoroutine()
         -- ignore these elements
         if obj.hasTag(IGNORE_TAG) == false
             and obj.hasTag("ActionToken") == false
-            and obj.hasTag("chaosBag") == false then
+            and obj.hasTag("chaosBag") == false
+            and checkMemo(obj) == false then
           coroutine.yield(0)
           trash.putObject(obj)
 
@@ -357,3 +358,15 @@ function findObjects(num)
     debug        = false
   })
 end
+
+-- checks if the object is owned by a playermat or the mythos, returns boolean
+function checkMemo(obj)
+  local memo = obj.getMemo()
+  if memo then
+    local decoded = JSON.decode(memo) or {}
+    if decoded.matColor then
+      return true
+    end
+  end
+  return false
+end