[Bug][DropDownList] No Slide-up animation for the adaptive view (regression)

[kdikov82]

I'm submitting a...

• Regression report

Current behavior

Only the slide-down animation on closing the adaptive view works. The slide-up animation on opening the adaptive view is missing.

Expected behavior

Opening and closing the adaptive view should have animation (was working with version 7.0.1

Minimal reproduction of the problem with instructions

Make the view small so the adaptive view can be shown: https://stackblitz.com/edit/react-yyamyx-kn7u79?file=app%2Fmain.jsx

Environment

Package versions: 7.1.0

[zdravkov]

The issue seems to be caused by an Animation issue with "react-transition-group": "^4.4.5" rather than a regression in our code - https://stackblitz.com/edit/react-kjf4vh?file=app%2Fmain.jsx

[PekoPPT]

Hey, @kdikov82. We've tried to replicate the issue in this Vite-based runnable example - vite-react-dropdownlist-animation.zip but with no success.

The reported behavior seems to be related to StackBlitz specifics or something else that we currently cannot reproduce. If you or someone else manages to replicate the issue with the animation in the linked example, please share with us more details and we will furhter investigate the case.