Video processing requires the worker. The editor waits for ready metadata before a video can be scheduled. A malformed or unsupported file fails preparation rather than appearing as a ready asset.
Provider selection
Reorder media to choose the most important files first. Posted uses the supported prefix for each provider.
X, LinkedIn and Bluesky accept images or a video in this version; mixing both produces an account error. Threads can use mixed media. These are conservative application limits. Provider access, quota and current policy still apply.
Add an accessible media description before uploading. Native video controls work in the media strip and live preview. Previews do not autoplay. Original images are preserved; delivery copies may be cropped or compressed for the target provider.