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kotlinlang

I've noticed that the *new Window API* in *Compose for Desktop* appears to break animations in my App :scream:, or at least make them very flaky.
I have an `AnimatedContent` driven slide transition between master/detail views.
When starting the app with the old `Window { &lt;content&gt; }` function, it is reliable and silky smooth :ok_hand:.
Now when starting with `application { Window { &lt;content&gt; } }` the animation works maybe 1 in every 10 triggers.  The content is all the same...
Is this a known issue; any likely causes? Using `1.0.0-alpha4-build344`

Will the problem disappear if you use this instead of the new Window API?
```import androidx.compose.ui.awt.ComposeWindow
import java.awt.Dimension
import javax.swing.SwingUtilities

fun main() = SwingUtilities.invokeLater {
    ComposeWindow().apply {
        size = Dimension(500, 500)
        setContent {

        }
        isVisible = true
    }
}```
If it will disappear then it is because of <https://github.com/JetBrains/compose-jb/issues/1054|this >issue (I am trying to fix it now)

Yes, I started my App &amp; same content using your provided snippet <@U015TKX93PD>; it is smooth :thumbsup:

Good to know, thanks for the quick reply, will await fix in a future build :slightly_smiling_face:

Thanks for the info :slightly_smiling_face: .

It is a very ugly bug and definitely will be fixed as soon as possible.
I just ran into some issues that prevented me to fix it quickly.