Vertical with autoplay and autoheight has weird jumps

[LucasMariniFalbo]

Check that this is really a bug

• I confirm

Reproduction link

https://codesandbox.io/p/sandbox/g4yzhx

Bug description

Swiper with vertical direction; autoplay and autoHeight features enabledm and also transition-timing-function: linear; style set to .swiper-wrapper to create a marquee design, experiences weird jumps after a while.

Initially runs smoothly, but if you wait just for some seconds, you'll notice the slide starts to gradually have some hard jumps, maybe due to a miss calculaiton problem perphaps, not sure.

The reproduction link has two slides to simulate a design, but even removing the second one the bug still happens, so don't seen a performance issue.

Expected Behavior

The autoplay animation to run smoothly without jumps

Actual Behavior

No response

Swiper version

11

Platform/Target and Browser Versions

Windows 10

Validations

• Follow our Code of Conduct
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.
• 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