I am on task 26 on the event and this task as it is is not possible to complete as I don't have anything to research. I hope this is a bug and this is not an event designed to be impossible to complete for us at the end of research
Ah, got the answer from Support, all 3 tasks must be completed. I was so used with an OR there that I didn't even notice that all 3 tasks are mandatory.
Do not like this change (if it's change).