Similar problem for database & object caching. If one site uses either of these you need the relevant db.php & object-cache.php files placed in wp-content. Sites that don't have them enabled show an error...
Execute next commands in a shell:
rm /var/www/html/wordpress-dev/wp-content/db.php
Looks like settings per site is only really possible on the more fine-grain controls. Which caching mechanisms are enabled has to be largely set network wide.
Is there something I'm missing?
Best,
Paul