Animations on the Posts block act weird in the editor

[rodica-andronache]

Description

Screen.Recording.at.2025-06-23.at.10-13-13.mp4

Step-by-step reproduction instructions

1. Add a Posts block
2. Try to add any animation to it -> In the Customizer it acts weird, while on the frontend everything is ok

Screenshots, screen recording, code snippet or Help Scout ticket

No response

Environment info

No response

Is the issue you are reporting a regression

No