When the Calendar loads first time, The event overlays appears on the top of the Calendar as shown in the figure 1) .

enter image description here

But when we refresh the page, the overlay event goes back to its original place as shown in the Figure 2).

enter image description here

This behavior is only noticed when there is a custom master page applied to the site. It seems to be no way to adjust this. Have anyone encounter such issue?

I have created a Custom Master Page using Visual Studio.

Edit: I am making few ajax async calls in the master Page. When i commented the ajax calls in the master page the overlays display properly. Click Here is the code in my master Page.

1 Answer 1


Use Chrome (Developer Tools) to debug it. Could be a javascript file is not loaded probably, but hard to tell without debugging.

  • Please see my edit to the question, as to why the issue is appearing.
    – SandeshR
    May 11, 2016 at 22:06

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