Markers inside a scrolling panel - bug - scrolls to the top automatically

I have a scrolling panel that is most of the slide. An image is inside the panel that is the width of the panel, and goes below the panel. There are markers on the screen, some you have to scroll down to get to. When the user clicks the first marker, it automatically scrolls the panel to the top of the screen. Only the first time you click the first marker - after that you can click any marker, or the same marker, and it does not do that. 
I think it's a bug but I'm wondering if there is a workaround? 

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