diff --git a/CHANGELOG.md b/CHANGELOG.md
index 02b98963e..6fc816408 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -74,6 +74,7 @@ All notable changes to this project will be documented in this file.
 - Incorrect cursor handling when placed object has filters
 - FLA export - Rounding errors on COLORMATRIXFILTER contrast
 - Filters - image bounds
+- Simple editor - Exceptions caused by not setting timelined when modifying PlaceObject
 
 ### Removed
 - Option to preview flash items via ActiveX component is no longer available.
diff --git a/src/com/jpexs/decompiler/flash/easygui/properties/panels/InstancePropertiesPanel.java b/src/com/jpexs/decompiler/flash/easygui/properties/panels/InstancePropertiesPanel.java
index 29e688f21..db5d30917 100644
--- a/src/com/jpexs/decompiler/flash/easygui/properties/panels/InstancePropertiesPanel.java
+++ b/src/com/jpexs/decompiler/flash/easygui/properties/panels/InstancePropertiesPanel.java
@@ -955,6 +955,7 @@ public class InstancePropertiesPanel extends AbstractPropertiesPanel {
                 int convNum = placeObjectBefore.getPlaceObjectNum() < minPlace ? minPlace : placeObjectBefore.getPlaceObjectNum();
                 PlaceObjectTypeConverter conv = new PlaceObjectTypeConverter();
                 PlaceObjectTypeTag placeObjectAfter = conv.convertTagType(placeObjectBefore, timelined.getSwf(), convNum, false);
+                placeObjectAfter.setTimelined(timelined);
                 placeObjectsAfter.add(placeObjectAfter);
             }
         }