A post failed or was missed

Open the post: it shows what the platform said. The common causes:

• The account needs signing in again: reconnect it (Settings → Accounts), then Retry.
• The platform refused the media: check size, length and aspect ratio; the composer's checks list the limits.
• Rate limited: the platform asked to slow down. Postkon waits and tries again on its own.
• Missed: the post could not go out within 6 hours of its time (for example while publishing was paused). Retry it with a new time.

If several posts fail at once, check the status page.