That is the intended difficulty of having to perfectly match values for a trade. Perhaps you had a string of bad luck? I'd have to see your board state when you have a loss. I just updated the rules to make starts a little more forgiving since you start with 3 Guild Standing instead of 0, but makes the game a hair more difficult overall since you have less total cards in your Inventory.
Favour was an old version's terminology (2023), have you downloaded a more recent version?