Hi:
The rwmb_normalize_meta_box does not work at all. It doesn't seem to be called.
(The rwmb_normalize_meta_box is in the docs on this page: https://docs.metabox.io/filters/rwmb-normalize-meta-box/)
If this filter is no longer working, is there another one I can use to manipulate the fields array just before it is rendered to the screen?
Thanks.