VBA Chart initialization!!

Hey friends!!
I have an interactive chart in a workbook.
I have a code as below on workbook

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Ok well, it works totally fine on my computer, main objective of the above code was that the user dont have to run macro everytime they open the workbook.
But when i try it on other computer, i have to run macro for once(Or close file and reopen it)... chart does not interact on first use of the file.
In the first time, if we run macro and without saving reopen it, then it works...
How can i solve my problem??

Check whether any other code (any macro code) is turning OFF the event before opening this file

Or

Enter this code in immediate window and open the file.

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Use stop to check whether the event is running or not

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What is the excel versions of both the systems?

I call all members help for this thread

Does the event not run at all, or does it just not do whatever it is supposed to do to the chart?

Event does not run at the first use of the file.
At the first use of the file in a different computer, the event does not work... either you have to run a macro or just simply closing and re-opening again runs the event... I have tried this in almost 10-12 different computers, some having 2010 and some having 2013 version but same problem occurred..

But after then, it runs perfectly as i programmed.

Does it do that with every other computer or just your friends computer??