When two RadEditors with different TrackChanges mode are defined on the page, a JavaScript error is thrown when inserting a list. The issue is reproducible only when the firstly declared RadEditor has EnabledTrackChanges set to false (the default value), while the second one has EnabledTrackChanges set to false.
Temporary workarounds:
Variant 1: Declare the not tracked RadEditors after the tracked ones, so there scripts will be loaded properly.
Variant2: Set the EnabledTrackChanges of all RadEditors on the page to true.
Steps to reproduce
1. Run the following code:
<telerik:RadEditor ID="RadEditor1" runat="server">
</telerik:RadEditor>
<telerik:RadEditor ID="HiddenRadEditor" runat="server" EnableTrackChanges="true">
</telerik:RadEditor>
2. Write something and press Enter
3. Click on the "Unordered List" tool
Result: A JavaScript error is thrown