Next slide navigation on Thumbs with loading="lazy" images scrolls to the first slide

[Tanya-atatakai]

Check that this is really a bug

• [X] I confirm

Reproduction link

https://codesandbox.io/s/swiper-react-thumbs-lazy-loading-b65lcv?file=/src/App.jsx

Bug description

When use Swiper with Thumbs and Thumbs slides have image with loading="lazy", click on Thumbs next slide button scrolls back to the first slide if the next slide's image wasn't loaded yet.

Video of the issue: https://user-images.githubusercontent.com/22725775/217233116-c2ceb241-aaff-46f2-9b63-2c8de11fcf12.mov

Steps to reproduce:

1. Open the codesandbox link
2. Click next slide on Thumbs

Expected Behavior

Next slide with lazy image appears normally, the same as a slide with already loaded image

Actual Behavior

Next slide with not loaded yet image appears and then Thumbs swiper immediately scrolls to the first slide

Swiper version

9.0.3

Platform/Target and Browser Versions

macOS, Google Chrome Version 109.0.5414.119

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]

Can't see such issue in this forked fiddle https://codesandbox.io/p/sandbox/swiper-react-thumbs-lazy-loading-forked-5r77b9?file=%2Fsrc%2FApp.jsx&selection=%5B%7B%22endColumn%22%3A28%2C%22endLineNumber%22%3A9%2C%22startColumn%22%3A28%2C%22startLineNumber%22%3A9%7D%5D

Video: https://user-images.githubusercontent.com/999588/217807050-d08af5cd-b7bb-420d-93b6-722444b33698.mov

[christopherjanzen]

Not only does this happen when the thumbs are lazy loaded, but it happens in the main swiper as well when images are lazy loaded. An example page for context: https://www.silverjeans.com/vintage-patch-pocket-wide-leg-high-rise-jeans/L28943RCS313.html Clicking on the last thumbnail without swiping through, the carousel will automatically jump back to the first image.