slideNext and slidePRev doesn't work...

Check that this is really a bug

[X] I confirm

Reproduction link

https://codesandbox.io/p/devbox/practical-mclaren-vhx6v9

Bug description

I tried making my own navigation for swiper but it doesn't work... I know it can work with svelte because "Decathlon.be" uses it. When I console log the swiperObject I don't see any methods for slideNext and slidePrev. Also when I enable the loop: true option it tells me "Swiper Loop Warning: The number of slides is not enough for loop mode, it will be disabled and not function properly. You need to add more slides (or make duplicates) or lower the values of slidesPerView and slidesPerGroup parameters" but even when I add 15+ slides it still gives me this warning. (My slides per view is 1 and I've not defined slides per group)

Expected Behavior

No response

Actual Behavior

No response

Swiper version

11.0.7

Platform/Target and Browser Versions

macOS Arc

Validations

[X] Follow our Code of Conduct
[X] Read the docs.
[X] Check that there isn't already an issue that request the same feature to avoid creating a duplicate.
[X] Make sure this is a Swiper issue and not a framework-specific issue

Would you like to open a PR for this bug?

[ ] I'm willing to open a PR

nolimits4web / swiper