comments_popup_link(): counter is missing

I migrated from WP Super Cache to Redis cache (with a Redis instance running on the same server as my WordPress does). I am really impressed by the speed improvement and I wonder why I had ignored Redis for years. I should probably change that.

Anyway: I set my “ignored” variable to [‘comment’, ‘counts’, ‘plugins’] – and still, the counter is wrong. I use comments_popup_link() to display the number of comments for an article in my loop, but most articles with comments are displayed as if they have none. (See my article from Sep 30 for an example how it *should* be – it displays 2 comments.)

I strongly suspect the Redis plug-in, as it is the only thing that caches now.

The page I need help with: [log in to see the link]