Game 104801556
Username jkommelb
Played Black Market, and then when given the opportunity to play treasures, played Crown followed by Gold, but it did not Crown the Gold (giving me just $3, rather than $6)
The behaviour shown was correct.
Crown reads
If it's your Action phase, you may play an Action from your hand twice.
If it's your Buy phase, you may play a Treasure from your hand twice.
(Emphasis mine).
When you played Crown, you normally would have been given the option to play an Action card from your hand (twice). But since you had none in hand at that time, that was skipped.
D'oh, of course. Thanks!