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Fixed in 6000.0.49f1
Fixed in 6000.0.X, 6000.1.X, 6000.2.X, future release
Votes
1
Found in
2021.3.37f1
2022.3.24f1
2023.2.18f1
6000.0.0b15
6000.1.0a7
6000.2.0a1
Issue ID
UUM-70286
Regression
No
Layout of elements is delayed when elements are styled with transition-duration
Reproduction steps:
1. Open the attached “BugRepro” project
2. Open the “Assets/Scenes/SampleScene.unity” Scene
3. Enter the Play Mode
4. Click the “Alert” button
5. Observe the Game view
Expected result: The pop-up dialog appears with only one button visible
Actual result: Two buttons are briefly visible in the pop-up dialog before transitioning to only one button
Reproducible with: 2021.3.37f1, 2022.3.24f1, 2023.2.18f1, 6000.0.0b15
Reproducible on: Windows 11
Not reproducible on: No other environment tested
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Papucska
Jun 04, 2025 09:03
I don't know if it is related to this fix but in 6000.1.2f1 I had some VisualElement controls with transition animation. I couldn't make the transition itself work but the delay worked and it was sufficient for me. Now with 6000.1.5 the delays are not working. The control appears and disappears immediately without any delay.
I made the control visible with the display: flex property and invisible with display: none property. I used the ease in and ease out anitmations with 0 duration and 0.5s delay and property set to all. What I observed is that in 6000.1.2 there is a display variable under the anitmation's property drop-down but in 6000.1.5 the display variable is missing. Only opacity, visibility and overflow can be selected.
This is the only change I could find which can be related to my issue. But it's possible that the display variable was removed in another change which I suspect causing my issue.