as soon as I am using my own classes on a page, there are several warnings shown on the frontend. It’s always the similar warning that says: Warning : Undefined array key “name” in /wp-includes/class-wp-list-util.php on line 198
It’s always the same file (class-wp-list-util.php) and the same line (198). I can prevent the warning from showing up via wp-config, but that shouldn’t be the solution I think, since it happens on nearly every website I was updating to 1.12.4
If I remove all custom classes used on a page, the warning doesn’t show up anymore.
Maybe someone can recreate this? If you need further information or a login to one of the sites, just let me know
looks like you have the same issue as the user in the topic below:
I was unable to reproduce it there, and I use custom classes. If you have a step-by-step solution for replicating the issue, I would be more than happy if you can share it in the mentioned topic.