You forgot to toggle Keyframes on for the asset or camera before moving it. The interface does not warn you. Select the object, enable Keyframes in the asset settings panel, then redo the move.
The splat scale is wrong. Return to the Location Settings panel, drop in the six-foot reference figure, and rescale. Every camera distance and composited element downstream depends on correct scale.
You used Load Locally instead of Upload when importing the location file. Load Locally keeps the file on your machine for the current session only — collaborators opening the same scene will not see it. Re-import with Upload so the file writes to the production library.
Scene loads in Spark Story but fails on iPhone or iPad
Your splat exceeds the roughly 5 million splat cap on Lightcraft Spark for iPhone or iPad. Downsample the splat for the phone and keep the full-resolution version for the browser and Jetset.
Pre-animated USD sits frozen on iPhone or iPad playback
You dropped the animation clip on the timeline but did not toggle Keyframes on for that object. Spark Story may render it correctly in the browser while the iOS app does not.
Drop scene locators at every action point and jump between them instead of flying. See arranging objects for creating locators in the browser, or add them directly in Lightcraft Spark.
Download the MP4 from the shot list. AI video tools like Seedance produce cleaner output from a real Spark Story shot than from a text prompt, because the camera move is already locked and consistent.
