I have checked your slider and the problem seems to be related to your theme. As I can see your theme is applying its custom styles on the slider overwriting its default settings causing this issue.
Unfortunately as the problem is not generated by the slider itself we cannot really solve it from our end. I'd recommend to contact the author of your theme with this case, they should be able to provide more insight on this and hopefully a solution.
I installed some templates from Template Store.
But Navigation Button looks different from Template Store's.
Would you tell me how to fix it?
Hey iLand_KK,
I have checked your slider and the problem seems to be related to your theme. As I can see your theme is applying its custom styles on the slider overwriting its default settings causing this issue.
Unfortunately as the problem is not generated by the slider itself we cannot really solve it from our end. I'd recommend to contact the author of your theme with this case, they should be able to provide more insight on this and hopefully a solution.