This is a random occurrence, but I have experienced it at least 6 times since the Resin Update. Sometimes, when a new duplicant is available, clicking on the "Choose Blueprint" button results in the game freezing with only the "Blueprint selecting music" playing. The game must be terminated and restarted at the last save.
I have plenty of food in my colony. They can reach the food (I made the dup go to the fridge). There is great quality food in there, and it is fresh. The dups, however, refuse to eat it.
The Happy Space Hut.sav