By default, a video will not show in All Team Content unless it is added to a Team Collection.
Here's how you publish a video to a Collection:
Step 1: Select your video's Permissions.
Step 2: Under "Add to Team Content," enter the Team Collection you want to add it to.
Step 3: Click Done.
If a relevant Collection hasn't been created yet, you'll have to create a new one before submitting your video. Learn more about Collections, here