At some point in the last couple days field values have stopped saving. I can't think of anything that would do that except I upgraded to WP 5.8. I tried rolling back with no luck. I only have about 8 fields, so it doesn't seem like it should be max field count. I'm not getting anything in the error log, no errors on the front end. Other things in the item save, like title, taxonomies, and status. This is a custom post type. Where could I look to debug this?
I'm currently running WP 5.8 and
MB Settings Page
Meta Box Conditional Logic