Just a gentle reminder that those 3 tasks at the end where no more than 1, 3 or 6 ninjas loss rewards, can only be claimed once throughout the entire duration of the event. Therefore, if you've already accomplished this task yesterday, that was it. It does not reset daily like the initial tasks of completing all 12 checkpoints.

This is correct.

The first four Survival Missions are daily. However, the rest aren't. they're one-time deals.

Also please make sure to have 12 Ninjas selected.