Productions in Premiere Pro operate under a model of clip referencing that is different from how clips work in other types of projects or collaboration models.
To understand this model of clip referencing, imagine a production simplified down to two projects: a Media Project containing clips and a Timeline Project containing a sequence with those clips in it.
When working in a production, as clips are edited from the Media Project and into the sequence in the Timeline Project, no new source clips (previously known as master clips) appear in the timeline project. If the media project has 100 clips and all of them are cut into the sequence, the timeline project still contains only one item – the sequence. The clips inside the sequence do not require a source clip to live in the same project. Instead, they refer back to the original source clips in the media project. As sequences are moved between projects in a production, no duplicate clips are created in the projects.
This clip referencing model only works inside a production. If two stand alone projects (not part of a production) are open like in the above scenario, Premiere Pro needs that a clip in a sequence requires a corresponding source clip somewhere in the project.
Drag and drop a clip or a sequence from one project to another within a production.
To create duplicate clips or sequences across projects in a Production:
To find the source of a clip in a production, right-click a clip in the timeline, and choose Reveal In Project. Premiere Pro then locates the source clip in the Project panel and selects it.
If the project file is not currently open, Premiere Pro opens the project and selects the clip. If the original source clip is no longer found in the project, Premiere Pro offers to scan other open projects to try to locate and reassociate the clips.
If you are unable to locate the source clip, try reassociating the master clip by selecting Edit > Reassociate Source Clips. Then select a project file for Premiere Pro to find the missing source clip.
Source clips can live in projects separate from sequences where they are used, so keep the following in mind when using markers:
When a source clip is cut into a sequence, it appears with the same label color it had in the project. From that point on, though, the label color is independent. If you change the label color in the sequence it does not change in the project, and vice versa. Multiple copies of the same clip in a sequence also do not update each other.
To add, modify, or remove source clip effects in a Production:
Multi-camera source sequences (multicams) are handled like ordinary source clips in a Production.
To modify a multicam: