Hello Asit Pani,
Can you please let us know of the exact build version of Sitefinity you're using for that project. I see that you have specified build 4.1.1574, however we used to have a bug causing the same behavior as the one on the screenshot provided in one of our previous versions - build number 4.1.1395. If possible, can you please check the version of Telerik.Sitefinity.dll assembly in your project's references.
the Telerik team
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