Since the introduction of the "quality of life" feature ("have quests" ticked) for daily writs, I noticed that the system doesn't seem to recognize some solvents as ingredient to complete alchemy writs.
For example: I need to craft a solution of Magicka. To do this, I combine Filtered Water with Columbine and Lady's Smock. But the system tells me I'm "missing Items/Traits". I also noticed the same problem for Solution of Stamina, Potion of Ravage Health and Solution of Ravage Health.
The same recipe for Sip of Magicka or Essence of Magicka are properly detected by the system, and can be quickly crafted using the "have quest" tick box.