If your Facebook posts are appearing twice on your profile or newsfeed, it could be due to a glitch in the Facebook app or website. However, there are also a few other possible reasons for this issue:
Posting from multiple devices: If you are posting the same content from multiple devices, such as a phone and a computer, it's possible that the posts are being duplicated due to synchronization issues.
Sharing from multiple accounts: If you are sharing posts from multiple Facebook accounts, it's possible that the posts are being duplicated when they are shared between accounts.
Cross-posting from other platforms: If you are cross-posting content from other social media platforms, such as Instagram or Twitter, it's possible that the posts are being duplicated due to synchronization issues.
To resolve this issue, try the following troubleshooting steps:
Clear your browser cache and cookies: Clearing your browser cache and cookies can help resolve synchronization issues that may be causing duplicate posts.
Log out and log back in: Logging out of Facebook and then logging back in can also help resolve synchronization issues.
Check your app settings: If you are using the Facebook app, check your app settings to ensure that your posts are not being duplicated due to synchronization issues with other social media platforms.
If the issue persists, try contacting Facebook's support team for further assistance.