Instagram Reels have become a powerful medium for creators and brands to expand their reach, engage audiences, and ride the wave of short-form video content. As the demand for consistent and timely publishing grows, automation tools like Metricool are increasingly used to schedule and manage Instagram Reels. However, users on platforms like Reddit often highlight failures and bugs that come with trying to automate this content type. Understanding these challenges is key to ensuring a smooth social media strategy.
TLDR
While Metricool offers great potential for automating Instagram Reels, users frequently report issues such as failed uploads, missing audio, and broken thumbnails. These problems usually stem from using personal Instagram accounts, incorrect video specifications, or permission issues during Meta Business integration. Configuring the right settings and understanding how the tool functions with Instagram’s API can help mitigate many of these issues. Proactive troubleshooting and following best practices are essential for seamless automation.
Understanding Metricool’s Instagram Reel Automation
Metricool is a popular all-in-one social media analytics and scheduling tool that supports platforms including Instagram, Facebook, Twitter, LinkedIn, and TikTok. Its ability to handle Instagram Reel automation is one of its strongest selling points—especially for marketers who want to create campaigns that run on autopilot.
However, due to Instagram’s strict API limitations and ever-changing algorithm rules, the process isn’t always foolproof. A lot of users from communities like Reddit have shared their frustrations, ranging from wrongly scheduled posts to videos that simply do not get published.

Common Failures Reported by Reddit Users
Reddit hosts a vibrant community of social media managers and digital marketers who frequently discuss tools like Metricool. Among the most commonly flagged issues are:
- Failed Reel Uploads: Videos scheduled via Metricool don’t get published or appear as blank posts.
- Audio Not Uploading: Some Reels are uploaded without their original sound, making them less impactful.
- Thumbnail Mishaps: Missing or low-quality thumbnails cause the aesthetic of feeds to suffer.
- Private Account Restrictions: Reels fail to post if the Instagram account is private or doesn’t meet business profile requirements.
- Incorrect Video Specs: Submitting videos not formatted to Instagram’s requirements leads to failed uploads.
Analyzing the Root Causes of Upload Failures
1. Personal vs. Business Accounts
Instagram Reels publishing via third-party apps like Metricool requires a professional Instagram setup. That means having a Business or Creator account linked to a verified Facebook Page via Meta Business Suite. Any attempt to schedule a post from a personal account usually results in a silent failure or Metricool flagging the error during pre-publication.
2. Account Authorization and Token Expiry
Instagram relies on access tokens through Facebook’s API. These tokens can expire or fail if permissions are revoked. Frequent user reports include needing to re-authenticate their social accounts in Metricool. If you’re missing permissions such as “Publish content to your page,” automation won’t work.
3. Video File Format Issues
Another critical failure point is improper formatting. Reels must meet the following criteria:
- Video format: MP4
- Aspect ratio: 9:16 (recommended)
- Resolution: At least 1080×1920 pixels
- Duration: Between 5 seconds and 90 seconds
If your video fails any of these requirements, Metricool may attempt to post it but Instagram could reject the file silently or notify through an app alert—not through Metricool itself.
4. Delay Window and Time Synchronization
According to several Reddit threads, delays in Reel publishing occur when there’s a mismatch in scheduled post time and user timezone settings in Metricool. If your account is set to a different timezone than your scheduled time, your Reels might post too early, too late—or not at all.
Best Practices for Troubleshooting
If you’re facing issues automating Instagram Reels via Metricool, here are some steps to take based on community and expert advice:
- Use a Business or Creator Instagram account connected to a Facebook Page through Meta Business Suite.
- Double-check account permissions during the Metricool login and linking process. Make sure all required Meta permissions are accepted.
- Stick to Instagram’s video specs: Low resolution or wrong aspect ratios often cause failures.
- Monitor Metricool’s content planner for posting status. If a Reel is stuck or marked failed, re-upload or check your token.
- Re-link accounts if in doubt: Sometimes manually unlinking and relinking your social profiles fixes unseen backend errors.

Workarounds for Anticipated Issues
If you need a more dependable workaround when facing reel automation issues, consider these alternatives:
- Manual Publishing Option: Metricool allows you to schedule manually by sending you a mobile push notification. You can post the Reel directly from your phone.
- Using a Compatible Scheduler: Tools like Later and Buffer may have more consistent API behavior in certain regions.
- Batch Uploading: Some users report greater success by uploading multiple Reels at once and scheduling them within a short timeframe to minimize token errors.
Common Misconceptions About Reel Automation
Some users believe that lack of publishing is always due to bugs in Metricool, but often the issue resides within Instagram’s native restrictions:
- “Reels are not uploading because Metricool is broken” – In many cases, the API simply doesn’t permit certain media types or features like trending audio.
- “I don’t need a connected Facebook Page” – This is inaccurate. All Business Instagram automation requires Meta Page linking.
Final Thoughts
Metricool is among the most efficient tools for automating Instagram Reels—when configured properly. Common issues mentioned on Reddit usually trace back to user setup errors, expired tokens, or misunderstandings of Instagram’s content guidelines. The best way to ensure consistent Reel automation is to pair technical knowledge with adherence to best practices and frequent verification of account linking and video specs.
Frequently Asked Questions (FAQ)
- Can Metricool schedule Reels for personal Instagram accounts?
- No, you must use a Business or Creator account connected to a Facebook Page to enable Reel automation through Metricool.
- Why do my Reels upload without audio?
- This often happens when royalty-free or trending audio from Instagram isn’t supported by the API. Uploading original sound or ensuring the sound is licensed can help.
- My schedule was correct, but the Reel didn’t publish. What happened?
- This may be due to a token expiration or permission error in Metricool. Re-authenticating your Instagram and Facebook connections usually resolves the issue.
- Does Metricool support thumbnail customization for Reels?
- As of now, customization is limited through API. Instagram selects a default thumbnail unless you post manually.
- What video specs should I follow for successful Reel uploads?
- Use MP4 format, a 9:16 ratio, at least 1080×1920 resolution, and a duration of 5–90 seconds for best results.
