Function #2664: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: Index
After closing that popup, I get Function #2662: Object reference not set to an instance of an object
No clue what tripped it, wasn't fatal and the game continued on. Conventional start, happened around July 2029 from a 2025 start. Possibly something to do with queuing multiple scientists with multiple projects?