Helpful articles for Final Cut Pro for Mac, Final Cut Pro for iPad and Final Cut Camera:
For a long time after rendering a project if I close the project and reopen the project becomes unfendred. I have just updated to ver. 10.4.9 and it is still occurring
Switch off background rendering. Delete generated files. If you have playback issues create proxy files.
That is something that I do. But if I complete a project, render, then find that I need to make a small change. When I open the project it has been completely Unrendered.
You don’t need to render to export. The l lost render files is not uncommon. It often happens with specific effects like noise and some other functions.
Loosing rendered files when reopening fcpx
