Trouble Uploading with PHP

$profile_photo = "UPLOAD_DIR/photos/12345.jpg"
        $file_info = array(
            'name'     => ($profile_photo),
            'type'     => $wp_check_filetype['type'],
            'tmp_name' => $profile_photo,
            'error'    => 0,
            'size'     => filesize($temp_file_path),
        );

        $uploaded = UM()->uploader()->upload_image($file_info, $user_id, 'profile_photo');

I’m having trouble with this code and I can’t get it to work, I keep getting an error saying it’s the incorrect mime type, but I’ve verified the mime type is being set to ‘image/jpeg’ and I don’t know why it’s not working. The photo is already on the server at this point, and I need to use the ultimate member uploader to get it to the user’s profile.

[ Please do not bump. ]