Yes, many people have been running into trouble while trying to watch their VR videos on Facebook App. Here are a few possible solutions that might help you with the issue you’re facing:
Check the Video File Format: Make sure the video file that you’re trying to upload is in one of the compatible formats for Facebook App. For instance, you can check the link below for more information on the formats that are supported by Facebook App.
Update the Facebook App: It is possible that the issue is due to an outdated version of the Facebook App. To make sure that this is not the case, make sure to update the App to the latest version available on the App Store.
Clear App Cache: Clearing the app cache may help if the video still fails to upload. You can check the link below for instructions on how to clear the app cache in iOS.
Upload the Video Through Website: If all of the above-mentioned steps don’t work, it is possible that the issue might be with the Facebook App itself. You can try uploading the video through the web version of Facebook, which may help solve the issue.
If none of these solutions help with the issue that you’re facing, the best option would be to contact the Facebook support team and ask them for help. They may be able to provide a more specific solution for your particular problem.
Hope this helps.