Webm video embed suddenly stops working

I’ve been playing around adding my own transparent video on this template (https://preview.webflow.com/preview/secret-project-79b346?utm_medium=preview_link&utm_source=designer&utm_content=secret-project-79b346&preview=3c379c22c75a1399b4b82b1d5fd5bc97&workflow=preview)

I’m hosting my webm video on AWS S3 and it all seems to work fine when I upload it into the custom code embed. However, each time after 5 or so minutes the video suddenly disappears… It’s very confusing! Am I doing something intrinsically wrong within my code / AWS settings?

Thanks in advance !


Here is my site Read-Only: https://preview.webflow.com/preview/hen-ry?utm_medium=preview_link&utm_source=designer&utm_content=hen-ry&preview=f7f278a8af346d820c843647397c8d76&pageId=62b4a0fb316d82156b637fe1&workflow=preview