Columns on Basic Slider not working

Hello!

I’m trying to set up a gallery that is a “Basic Slider” with 4 columns. That is, a slider that shows 4 images at a time. But no matter how many columns that I specify it always show one column at the website.

Here is an image of the settings page

https://trello-attachments.s3.amazonaws.com/5c67026e86116367efaa66c0/5df0e37c57aa3349d3fc8e01/4a5dd14bb6368684c4c2309432f8a7f0/image.png

Thank you!