Animation not playing with Lottie import

The Lottie can be imported to Rive, but when previewing there is no animation or objects to see. Previewing in Lottie Previewer works fine.

The Lottie file: https://app.lottiefiles.com/share/cd453d8b-6c8b-48d2-b07d-345d9af80155
Json file: https://we.tl/t-qZgzXKh200

Animation made in Jitter, exported as Lottie. Uses masks. Safari.