Facebook may not upload videos if there is a problem either in the server or the platform where you usually access your account. If you’re using the app and getting Facebook not uploading video, uninstall and reinstall the app to see if a certain workaround works out. Another thing you can apply is to check the format you’re going to upload, and if possible, change it to a different format for successful uploading.

Also Read Our Popular Post To Troubleshoot Facebook Problems and Issues:-

Facebook Search not Working on iPhone
How To Schedule A Post On Facebook Account
Lock Facebook Profile on iPhone
Deactivate Facebook Account
Recover Disabled Facebook Account
Clear Search History From Facebook
Facebook Not Responding
How to Bypass Facebook 2 Step Verification