After buying the Alien Myths campaign and playing through the first three missions of the campaign in order, I got into a game as an antagonist for Hanging by a Thread. At the character select screen, all I could see were the empty hexagons where the character portraits would normally be. Also, the background behaved oddly when I moved the right thumb stick.
This was on Xbox One.
Edit: After getting past that screen (it timed out normally), I viewed the cutscenes as normal, skipping the first, but not the second. After the second finished playing, I was greeted by the regular music for the level and a black screen. Pressing the pause button did nothing, and I proceeded to restart the game without turning off my console. The game seems to be behaving normally now.