Vue: Scroll stutters/gets stuck when scrolling up

[AmandoVledder]

Describe the bug

We're experiencing an issue that when scrolling back up you get stuck on a item, when using dynamic sizes.

It can easily be reproduced by scrolling a bit down in the dynamic vue example and then trying to scroll back up.

I've tried to find the cause for this but have been unable to

Your minimal, reproducible example

https://tanstack.com/virtual/latest/docs/framework/vue/examples/dynamic

Steps to reproduce

1. Go to https://tanstack.com/virtual/latest/docs/framework/vue/examples/dynamic
2. Scroll a bit down
3. Try to scroll up slowly

Expected behavior

I'm expecting to be able to scroll up

How often does this bug happen?

Every time

Screenshots or Videos

bug.mp4

Platform

macOS Sequoia 15.4.1 - Chrome 137.0.7151.104

tanstack-virtual version

3.13.11

TypeScript version

No response

Additional context

If you scroll fast it tends to work better, but we're using this on mobile and the users do slow scrolls/swipes back up

Terms & Code of Conduct

• I agree to follow this project's Code of Conduct
• I understand that if my bug cannot be reliable reproduced in a debuggable environment, it will probably not be fixed and this issue may even be closed.

[0x30]

#925

I'm not entirely sure, but it seems to be effective