"Checklands" (lands that come into play tapped unless there is a basic land of some sort already in play) are being prioritized over basic lands by the AI. This defeats the whole purpose of having them in a deck if they're drawn early.

The lands are
Rootbound Crag
Glacial Fortress
Drowned Catacombs
Dragonskull Summit
Sunpetal Grove

Clifftop Retreat
Isolated Chapel
Woodland Cemetery
Hinterland Harbor
Sulfur Falls

What's more, the AI will (seemingly always) play these lands over a basic land. This usually means it's wasting it's first turn pointlessly, and then often spends it's second turn playing something it should've been playing on the first turn or performing a cascade of misplays that trainwreck a deck.