Hi @rmccormac
Could you please ask your hosting for checking PHP error logs to see if there are any issues related to this?
If that doesn’t help, maybe you can reset user roles and capabilities to defaults. Users’ capabilities are stored in the database in the wp_user_roles option in the wp_options table, so you can update this option directly in the database. You can use cPanel or one of the database plugins, but before you do this make sure to backup the current value to restore your roles later if needed. Here you can find the default value for the wp_user_roles option.
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Hopefully, that helps.
