Collectible Card Game Headquarters

Describe the Bug:
Vendilion Clique can't be cast from the command zone at instant speed/during opponent's turns (see savegame).

Neither Winding Canyons ' nor Alchemist's Refuge 's flash ability lets the player select his/her commander (see screenshot).

Derevi, Empyrial Tactician 's activated ability can't be activated at instant speed.

Which card did behave improperly ?
Creatures in command zones + granted flash, Vendilion Clique and Derevi, Empyrial Tactician

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
JOU v1, duel

What exactly should be the correct behavior/interaction ?
Vendilion Clique can be cast from the command zone at instant speed/during opponent's turns (see savegame).

Both Winding Canyons ' and Alchemist's Refuge 's flash ability let the player select his/her commander (see screenshot).

Derevi, Empyrial Tactician 's activated ability can be activated at instant speed.

Are any other cards possibly affected by this bug ?
Teferi, Mage of Zhalfir, Jin-Gitaxias, Core Augur, Wydwen, the Biting Gale and Yeva, Nature's Herald

Fixed the bug regarding Commanders with flash and the Derevi bug in 4500526.
This also handles very special cases like Venser, Shaper Savant, that could be finally cast as "counterspell" from the EDH card. That will require a littel modify to 'ct_all'.
Still nothing for the interaction with Winding Canyons and similar, stay tuned.

As of CoRM15, flash commanders now work properly - the community will be grateful

Winding Canyon interaction is still open.