On my local machine i have magento 2.2.0 running the Solwin/freego theme, running in production mode.
On this setup the layered navigation works works well on al category pages (4 deep if you count root).
Then I copied the DB & theme files to a clean install on a production machine, and hey presto no working layered naviation... well only partly... not everywhere
(see http://graylem2.hypernode.io - under ''patchkasten'' the layered navigation works)
I have no clue whatsoever what can cause this.
DB is copied, so no changes in the settings (still all categories are anchored), cache flushed a million times, reindexed a million times...
Github tickets i found but offered no help:
Found the problem, I've made some images for the cable length filter.. forgot the upload them.
Now it all works like it should.. moving on the the next problem :-)