Invalid Consumer ID when modifying any consumer apart from self

Customers can log in OK but when I attempt to do something on behalf of one other consumer like reset a password, edit profile, create new consumer then I get an Invalid Consumer ID error web page. I turned on Debug and Log and I do not see something particular that will be inflicting this subject.

This can be a multisite set up, operating SSL, all PHP sources are greater than required, and makes use of the next within the htaccesss.

    # BEGIN WordPress
    # The directives (strains) between "BEGIN WordPress" and "END WordPress" are
    # dynamically generated, and will solely be modified by way of WordPress filters.
    # Any modifications to the directives between these markers might be overwritten.
     <IfModule mod_rewrite.c>
     RewriteEngine On
     RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
     RewriteBase /
     RewriteRule ^index.php$ - [L]
    
    ## drive HTTPS and www
     RewriteCond %{HTTP_HOST} (?!^www.)^(.+)$ [OR]
     RewriteCond %{HTTP_HOST} !^www.
     RewriteRule ^(.*)$ https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
    
    # add a trailing slash to /wp-admin
     RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]
     RewriteCond %{REQUEST_FILENAME} -f [OR]
     RewriteCond %{REQUEST_FILENAME} -d
     RewriteRule ^ - [L]
     RewriteRule ^([_0-9a-zA-Z-]+/)?(wp-(content material|admin|consists of).*) $2 [L]
     RewriteRule ^([_0-9a-zA-Z-]+/)?(.*.php)$ $2 [L]
     RewriteRule . index.php [L]
     </IfModule>
    # END WordPress