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Publishing failures almost always come down to one of four things: a connection that needs reconnecting, content a network won’t take, a destination that was never picked, or a Rheos safety check. Here’s how to spot and fix each.

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A post failed to publish

A post goes to one platform, so it either publishes or it fails. The exception is a Meta post going to both Instagram and Facebook: those publish independently, so one can go out while the other fails. That post lands as Partially published.
1

Open the post

All your posts are on Home, and your latest are under Recent in the sidebar. Both list failed and partially published posts.
2

Read the error

The post shows Publish failed or Partially published, with each account it went to and the platform’s own error message on the ones that failed.
3

Fix and retry

Reconnect the account, or fix whatever the message asks for, then select Retry on the account that failed. Accounts that already published are left alone. Retry one account and the post stays Partially published until every account has gone out.
If the failure needs something the post doesn’t have — an image for Instagram, say — retrying can’t help. Use Create a new post to fix this. It copies the post into a fresh draft targeting only what failed, and leaves what already published alone.

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Common errors

The network invalidated your access. Go to Settings → Social Accounts, open the brand section holding that account, and reconnect from its card. Then retry the post.Rheos renews most connections for you: Instagram in the background, X each time it publishes, and LinkedIn too when your connection was issued a refresh token. Facebook is the one that always needs a manual reconnect, roughly every 60 days.Reconnecting is also how you grant new permissions when Rheos adds a capability that needs them.
Instagram has no text-only post type, so Rheos blocks scheduling or publishing a post that includes it until the post has media attached.Add an image or video from the Attachments card and you’ll be able to publish.
If you admin more than one LinkedIn company page or Facebook Page, Rheos publishes to only one — and it won’t guess which. Until you pick, posts to that page fail.Open Settings → Social Accounts, find the card under that brand — it reads No page chosen yet or No Page chosen yet — and choose the page you want to publish to.
Your Instagram account needs to be Business or Creator — personal accounts can’t publish through the API. Switch it in the Instagram app under Settings → Account type, then reconnect in Rheos.
Each network has its own rules. Instagram takes 1:1, 4:5 or 9:16 video, and a 9:16 clip posts as a Reel. Instagram multi-image posts are capped at 10 images and every image has to match the first image’s ratio; X caps a post at 4 images.Rheos checks the media once before you schedule or publish, and the banner above the buttons names the problem: a file over the platform’s size limit, more items than it accepts, or video where it takes only images. A clip over the length limit or a ratio the platform will crop gets a warning rather than a block. It can only check what it has recorded about a file, so the platform can still reject media the check couldn’t see. Swap or re-encode the media and retry.
This is a Rheos cap, not the platform’s. To stay comfortably inside each network’s own limits, Rheos allows a set number of posts per connected account per day: X 15, Facebook 20, LinkedIn 80, Instagram 90.The counter resets at midnight UTC, so waiting an hour won’t help. Reschedule the post for the next day.
Rheos blocks republishing identical content — same text, same media, same networks — within 10 minutes, so an accidental double-click doesn’t double-post. You’ll see “You just published this exact post”.If you meant it, select Publish anyway on the warning. There’s no need to reword the copy.
Deleting an asset from your Library after attaching it to a post breaks the link. At publish time Rheos skips the attachment it can no longer find and publishes the rest, so the post goes out text-only on a network that allows text-only posts.On Instagram, which needs media, losing the only attachment leaves nothing to send, and that network fails with a message saying Instagram needs at least one media item.Either way the fix is the same: open the post, attach the image again from the Attachments card, and publish it again. Keep an asset in the Library while any post still uses it.

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Still stuck?

Select the ? in the sidebar to chat with the Rheos team, or email support@rheos.app. Tell us the post title, the network that failed, and the error message shown on the post. Those three things are what we need to trace it.
Last modified on October 2, 2026