Issue with loop: true and controller sync between two Swipers

[omri-barzilai-loox]

Hi all,

I'm using the Material You Slider component in a production app and have encountered a sync issue when using two Swipers side by side — one for images and one for corresponding text. Both are configured with loop: true and are set to control each other via the controller module.

Swiper version: 11.2.8

Issue
When the image swiper loops from the last slide back to the first, it behaves correctly. However, the text swiper becomes stuck — it stays on the last visible slide even though it appears to animate. For example, if there are 4 slides:

After swiping to the 5th slide, the image swiper loops to slide 1.

The text swiper remains stuck on slide 4 and never updates again.

Pagination Bug
In addition, there is also unexpected behavior with the pagination UI . When the image swiper loops, the pagination bullets do not update correctly.

Reproduction
I've created a minimal sandbox to isolate the issue using plain Swiper:
👉 https://codesandbox.io/p/devbox/swiper-navigation-forked-2238w7?workspaceId=ws_9dSAUbWkSJYTEazBebDhFg

This example doesn't use Material You Slider directly but demonstrates the same behavior.

Expected
Both swipers and the pagination should remain fully in sync, even when looping.

Would appreciate your insight on whether this is a known limitation or a bug — and any recommended workaround.

Thanks!