Imovie 10.1.9 — Fast

: Added specific support for iPhone X and updated iPad resolutions for creating App Store video previews.

: Resolved critical issues where HEVC video clips and HEIF photos would incorrectly appear black in the viewer. Bug Fixes : iMovie 10.1.9

: Reviewers found the redesigned interface counter-intuitive compared to the "stacked timeline" and precision editing tools of iMovie 9. : Added specific support for iPhone X and

: Users reported significant slowdowns in import times—sometimes jumping from minutes to over an hour—and frequent "Can't Encode" errors during export. iMovie 10.1.9

: The ability to start a project on an iPhone or iPad and seamlessly finish it on a Mac remained a standout feature for mobile creators. The Bad: Performance & Workflow Shifts

iMovie 10.1.9 slow import from sd card - Apple Support Community