How do I submit a video!?
It's up to the challenge creator to start the challenge. If you have joined a challenge that has not yet started, we recommend reading the chat lobby as it very common for the challenge creator and other players to plan and discuss when the challenge is going to start.
Once the challenge creator starts the challenge, the challenge will begin at 3am the following day, in your time zone. Once this time has passed you will see a large button with "Check in" become available where you then can submit your video proof.