Currently there is no way to position the text within a button element other than “centered”. We will improve on this in the future.
In the meantime you might be able to use and image element instead of a button and specify a link for it and then position another button on top with the background set to transparent and border set to none. This creates an invisible button with just text showing. You can position this button appropriately
Another option would be to include the text in your image if possible and then remove the label text from button.
The bug that causes duplicated buttons to lose their styling has been fixed and will be deployed to app.unbounce.com sometime in the next few days.
Let me know if either of these solutions work for you.