AddToAny Share buttons don't display in Preview

I’m using the “AddToAny” plugin to add some social sharing buttons.
But even though, the social buttons are well displayed in the “Design” tab (see screenshot). They are not displayed in “Preview”.
I checked there is no condition about that, the buttons should be visible on page load as the parent groups. I don’t have any explanation…

@john11 Please submit a bug report if you have confirmed display on page load is enabled and there is no conflict with another plugin.

Will do! Thanks!