It works now, it worked only when I deleted the grid from the collection view and I rebuild it from scratch.
I deleted/rebuild the grid because it also was not possible change the "order" of the fields in the grid, so something happened. (I also refreshed/reloaded the page, thinking it was a client-side issue, but it wasn't)
it happened also before the last improvement you added (the authoring feature).
I noticed that bug after I deleted a field table that had many relations and links to views around the component, so after I checked all the "views" and I replaced all missing links, I saw that.