Longer sessions take longer to process, and a busy queue adds to it. Stuck usually turns out to be one of three things.
It is still uploading. A session showing uploading has not fully reached us. Uploads stall silently on weak signals and backgrounded apps. Keep the app open on a decent connection until the status changes to processing.
It is processing, and processing takes time. Once a session shows processing, it is safely with us. You can close the app, leave, sleep; none of it slows anything down. You will be notified the moment it is ready.
It has genuinely wedged. If far more time has passed than the length of your session could explain, something has stuck on our side. One request: do not delete and re-upload. The footage has almost always arrived intact. Deleting it throws away your place in the queue and doubles the wait.
Message the team below with the session date and rough length. We will find where it stopped and put it right, or tell you plainly what happened.