No Oxygen Within Some Blocks of Airtight Ship
WHAT IS HAPPENING
While inside of an airtight ship that has 100% oxygen you'll begin to choke and lose health. This usually happens when you move your player near a window.
WHAT SHOULD HAPPEN
Every block within an airtight oxygenated ship should have oxygen.
HOW TO REPRODUCE
Create a large ship using a combination of armor plating and window blocks. Pressurize the ship. Now walk near the window panels. While near some of them with your helmet open. You should start to suffocate and take damage.