Actually those are different notices.
Thanks for the additional info, I’ll pass it on to our development team.
As I’ve said before, PHP notices are not errors, they do not affect the execution of PHP in any way, they are just notices; messages from the developers of PHP to coders to let them know how changes in the PHP program itself are affecting their code.
Set WP_DEBUG to false in your ‘wp-config.php’ file and you won’t see the notices.