I have a

LazyRow

with about 50 items. Each item consists of an image as well as 3 icons. When I use

animateScrollToItem(idx)

, I get following excepion:

java.lang.IllegalStateException: LayoutNode should be attached to an owner
        at androidx.compose.ui.node.LayoutNodeKt.requireOwner(LayoutNode.kt:1433)
        at androidx.compose.ui.node.ModifierLocalConsumerNode.notifyConsumerOfChanges(ModifierLocalConsumerNode.kt:42)
        at androidx.compose.ui.node.ModifierLocalConsumerNode.access$notifyConsumerOfChanges(ModifierLocalConsumerNode.kt:23)
        at androidx.compose.ui.node.ModifierLocalConsumerNode$Companion$onReadValuesChanged$1.invoke(ModifierLocalConsumerNode.kt:49)
        at androidx.compose.ui.node.ModifierLocalConsumerNode$Companion$onReadValuesChanged$1.invoke(ModifierLocalConsumerNode.kt:48)
        at androidx.compose.runtime.snapshots.SnapshotStateObserver$ApplyMap.callOnChanged(SnapshotStateObserver.kt:272)
        at androidx.compose.runtime.snapshots.SnapshotStateObserver.callOnChanged(SnapshotStateObserver.kt:215)
        at androidx.compose.runtime.snapshots.SnapshotStateObserver.access$callOnChanged(SnapshotStateObserver.kt:24)
        at androidx.compose.runtime.snapshots.SnapshotStateObserver$applyObserver$1$2.invoke(SnapshotStateObserver.kt:43)
        at androidx.compose.runtime.snapshots.SnapshotStateObserver$applyObserver$1$2.invoke(SnapshotStateObserver.kt:42)
        at androidx.compose.ui.platform.AndroidComposeView$snapshotObserver$1.invoke(AndroidComposeView.android.kt:268)
        at androidx.compose.ui.platform.AndroidComposeView$snapshotObserver$1.invoke(AndroidComposeView.android.kt:266)
        at androidx.compose.runtime.snapshots.SnapshotStateObserver$applyObserver$1.invoke(SnapshotStateObserver.kt:42)
        at androidx.compose.runtime.snapshots.SnapshotStateObserver$applyObserver$1.invoke(SnapshotStateObserver.kt:26)
        at androidx.compose.runtime.snapshots.SnapshotKt.advanceGlobalSnapshot(Snapshot.kt:1446)
        at androidx.compose.runtime.snapshots.SnapshotKt.takeNewSnapshot(Snapshot.kt:1456)
        at androidx.compose.runtime.snapshots.SnapshotKt.access$takeNewSnapshot(Snapshot.kt:1)
        at androidx.compose.runtime.snapshots.GlobalSnapshot.takeNestedSnapshot(Snapshot.kt:1132)
        at androidx.compose.runtime.snapshots.Snapshot$Companion.takeSnapshot(Snapshot.kt:230)
        at androidx.compose.runtime.SnapshotStateKt__SnapshotFlowKt$snapshotFlow$1.invokeSuspend(SnapshotFlow.kt:150)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
        at kotlinx.coroutines.flow.internal.SafeCollector.invokeSuspend(SafeCollector.kt:41)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
        at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loopOnce(Looper.java:201)
        at android.os.Looper.loop(Looper.java:288)
        at android.app.ActivityThread.main(ActivityThread.java:7839)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)

No exception happens if I use

scrollToItem(idx)

. I tried to reproduce the issue in a sample app, but was not able to. I also wasn't able to pinpoint what exact line of code causes the issue. My best guess is that it might be caused by the icons. Each of them is received as a flow similar to this:

@Composable
private fun MyIcon() {
    val image by remember { getImageFlowSomhow() }.collectAsState(initial = null)

    image?.iconName?.let { iconName ->
        Image(
            rememberVectorPainter(image = Icons.Default.PlayArrow), // to be replaced with real icon
            contentDescription = "",
            Modifier
                .size(32.dp)
                .clickable { Log.e("tag", "MyIcon() ... clicked") }
        )
    }
}

Notes: - removing the flow and image null check fixes the issue - keeping the flow, but removing the

clickable{}

also fixes the issue Since there is more than one fix for the issue and flows are supposed to work as far as i know, my question: what could be the root cause for this exception? How can a compose node end up with no parent?

thank you both a lot for reading and the help. i appreciate it.