Version

3.1.0-beta.3

Reproduction link

here

Steps to reproduce

1. Create a component with a named slot. Add a scoped variable
2. Add a Transition component as the slot parent.
3. Notice how the slider component only applies the animation on component leave.

What is expected?

Animation should work on child component enter and leave

What is actually happening?

Animation only works on component leave.

Do you mean this sfc playground ?

Do you mean this sfc playground ?

Yep, that playground.

I mean it works correctly, see that playground I provided.

See also: https://v3.vuejs.org/guide/migration/transition.html