In the workbench for the alchemy tower in Lakefiew Manor, everything is still in the crafting menu even though most(if not all) has been built. I exit out of the crafting menu and go back in and it's still there. I am not aware of any fixes to this
The work benches are really glitchy on a console you can only really keep entering the exiting the menu (and leaving the area as well) to try and get the correct items to show up, or with the workbench reload before turning it off. With a PC you could probably add the items with the console but the id's are very hard to find.