Not sure if this game is still updating, but I have encountered a major bug. Every time when the wheel is played (either the player plays it, or AI plays it), there's about 50% chance that it will send one blank space to the Age Pool. Then AI can take the blank space as if its a playable card.
The game gets very weird since AI can win with blank spaces in their timeline.
It also seems like if you take the wheel card from Ages Pool and play it on timeline immediately, this bug will trigger.