I was hoping you could help.
Up until a few days ago we could drag composer blocks onto the site. Now we cannot see the blocks in the Toolbox. The Toolbox is visible but when you click on the arrow the arrow points down but there are no Composer blocks to view.
In the Developer Inspector panel in the Browser we can see that the panel has a Display: none.
Is there a setting in the CMS that someone may have set to stop the blocks from showing? Layout Blocks are the same. But Global blocks are visible?