They disappeared already but the event hasnt ended yet.
As pointed by someone on Discord, the missions seem to be tied to slice 1 end time (just like the utterly misleading banner saying how much time the events have left) and not slice 5.
Also progress on meta mission is gone, showing 0/11 after reset to year 2014 missions
I’m complete missions should be 2\11, but show 1\11
Same here
@pepitedechocolat its happened to me to I thought I was going crazy thinking I hadn’t completed the missions in time but it’s a bug