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What is the best way to debug “Shared element transitions with navigation-compose” (<https://developer.android.com/develop/ui/compose/animation/shared-elements/navigation>) ? The list --> detail (hero) animation works smoothly, _but going backwards from hero -> list shows a slight jump in the first few frames_.

Per the docs, I was careful to keep modifier order identical, no differences in source/target padding, etc. Since there are viewmodel involved things are not previewable so I don’t think Android Studio can help … please correct me if i am wrong

Would be good to show a video of what you are experiencing.
My completely random guess is that your first screen state isn't what it should be, perhaps there's one frame of a "loading" state or something. But again, a video would help a lot here.

Ok thanks, I will slow animation down and try to capture this. I noticed JetSnack uses nested NavHosts for these animations: The outer navhost containing an inner navhost. I was trying to avoid that, and wondering when it was strictly required. It was the only piece/key missing from the otherwise excellent docs

<@U010JQZ3FRC> seems like the source and target had different aspect ratios. Thanks