Please re-run the Magical Mischief event.
The amount of time that Circus Calamitous Wk 2 and Magical Mischief overlap varies significantly from region to region. It's too unfair if Severe Foundables rarely appears in these overlapping times. What's more, by the time this information came out, many players in New Zealand, Japan and other APAC countries were already finished the Special Assignments, as the event period was about halfway through. Please re-run the Magical Mischief event.