Autoscripts are messed up, activated and triggered abilities that used to be automated, now often do not work at all. Examples: Khalni Garden, Thallid Shell-Dweller.
Activating an ability that's not implemented in the database doesn't put a blank ability onto the stack (has that ever worked?).
Feature request: "Move all cards to..." for all possible zones.
Feature request: Allow passing even if a player has already passed priority.