You have a couple of options to successfully edit the content of that project:
- If your project is still saved on Background Music, you can find it among the ones listed on the home screen of the app (right under Start a new project). If you see it there, feel free to select it: in this case, you'll be able to open it again and edit it as you did before, with no limitation whatsoever.
- If your project is not listed on the home screen, you can definitely re-upload it from your camera roll (Tap on Start right under Start a new project > Select the video you saved from your camera roll > Tap on Next and it will appear in the editing screen).
In this case, you'll see that it became a standalone video: when you re-upload a previously saved project into the app, it will show up as a single media, and you will need a little bit of re-work to be able to select every single picture or video you previously added to it. You can do it as follows:
- Tap on the timeline right under the preview of the video at the top of the screen and move your finger to the left or to the right to place the orange pointer where you'd like to split the video into separate frames (i.e. between two different media).
- Tap on Split visible in the menu at the bottom of the screen: the two media will be separated and you'll be able to work on them independently.
- Repeat the process with every media you'd like to manage separately and you'll be able to edit each one of them as you did before, with no limitation whatsoever.