The option to ignore sticky posts is not working. However, if I use the query editor to manually define my query, sticky posts are ignored as should be. Problem is that my GridBuilder filter facets don’t seem to work if I use the query editor.
I think there is simply a comprehension problem here. “Ignore sticky posts” does not exclude the sticky posts from the loop, but merely ensures that they are no longer sticky/prepended. However, since your sticky post is also the most recent post, it will still be displayed first.
Looks like wpgridbuilder needs 'ignore_sticky_posts' => 1 in both cases to make it work properly (btw., there’s no issue with our native filter feature as far as I can see).