I've come across a lot of people facing this issue that was eventually solved by file permission.
I'm getting this error:
The uploaded file could not be moved to wp-content/uploads/sites/4/2019/11.
While I've tried even with
chmod -r 777 in my wp-content/uploads, it is still returning the same error.
I've also added in my wp-config
define( 'UPLOADS', 'wp-content/uploads' ); require_once( ABSPATH . 'wp-settings.php' );
But nothing seems to work.