[4.x]:

What happened?

We are building a new website with a clean database (not upgraded from craft 3)
So i want to add a field to a section. The field is a matrix with some building blocks.
However when i save the section i get the following error:

array_key_exists(): Argument #2 ($array) must be of type array, string given

After this i cannot remove the field anymore from the section after saving the field is still there withouth error its just back again after moving it.
If i open the edit page of this entry i get the following error:

TypeError: array_key_exists(): Argument #2 ($array) must be of type array, string given in /var/www/html/vendor/craftcms/cms/src/fields/Table.php:416

Steps to reproduce

1. place a matrix in an entry (This did work before for us since we managed to do it at the start of the week we have updated in between) The only plugin we used in this matrix is linkfield which caused no problems in another project we are working on.

Expected behavior

Actual behavior

Craft CMS version

4.2.1.1

PHP version

8.1.8

Operating system and version

No response

Database type and version

MySQL 10.4.25

Image driver and version

No response

Installed plugins and versions

    "craftcms/cms": "4.2.1.1",
    "vlucas/phpdotenv": "^5.4.0",
    "craftcms/feed-me": "5.0.4",
    "craftcms/redactor": "^3.0",
    "doublesecretagency/craft-siteswitcher": "2.3.0",
    "mmikkel/child-me": "1.3.1",
    "mmikkel/cp-field-inspect": "1.4.4",
    "nystudio107/craft-retour": "4.0.2",
    "nystudio107/craft-seomatic": "4.0.7",
    "putyourlightson/craft-blitz": "4.2.1",
    "sebastianlenz/linkfield": "2.1.4",
    "solspace/craft-freeform": "4.0.0",
    "topshelfcraft/wordsmith": "4.0.1",
    "verbb/super-table": "3.0.0",
    "verbb/expanded-singles": "2.0.0",
    "verbb/field-manager": "3.0.2",
    "verbb/knock-knock": "2.0.0",
    "wrav/oembed": "2.2.1",
    "carlcs/craft-redactorcustomstyles": "^4.0"

Start by reproducing the Matrix field setup described in the issue on Craft CMS 4.2.1.1, then inspect vendor/craftcms/cms/src/fields/Table.php around line 416 and the entry edit/save flow. Done means the section can save and the entry can be opened without the array_key_exists() TypeError, while the Matrix field remains removable.