I have to come back to this problem again. The problem does not come from the back to top, but must have another cause.
I've run sliders on other sites with the back to top with no problems.
I removed the back to top button but the sliders still jump around wildly.
The Sliders still need ids to be able to know what elements to open.
The 'hash' thing refers to whether or not the id of the active slider is added to the URL when clicking it.