Must re-render FCPX projects each time I open them
I see this question has been asked numerous times over the years with no resolution but I'm hopeful someone has a fix! I'm running FCPX off a Macbook Pro with iOs Big Sur 11.7.10 (yeah, it's old but my Macbook is even older and that's the most recent iOs it can use.)
My projects are either 1080p or 4K. When working on them, I view them as proxy preferred. I trash my generated render and optimized media files periodically to keep the size down. Background rendering is set to "off." Yet each time I open a project, I must re-render the entire thing. It's extremely time-consuming and slows down my workflow. Any suggestions beyond what I've already tried are greatly appreciated!
MacBook Pro 15″, macOS 11.7