Bug in disabled elements of array?

Hi guys.

I'm having an strange behavior of the disabled elements of an array. Those elements are clusters. I guess it's a bug because it happens even while the program isn't running.

I recorded a video where you can see how the disabled clusters, are taking some values of the last cluster where I had the cursor.

And as you can see I don't have any diagram code.

Have you ever seen something like this?

It matters to me because for the client It'll looks like it there were a error.

http://youtu.be/I_rsRzldeEE

Thanks and my best regards