I've noticed recently that sometimes when I come back to a event to report on a scenario, or even on an already reported scenario, it deletes all the choices of scenarios for the event. 56257 is an example. I came back to it now because I noticed one of the players was missing this event's scenarios, because the event doesn't actually have the scenarios listed under it. It's happened a few times with the ACG events too.
What scenarios are you expecting to see that are missing?
Many of these are being fixed internally, but I'd rather make sure they're on the list.
Immortal Conundrum, The disappeared and In Wrath's Shadow are some of the ones I remember it happening to.
It seems to be because I clone the events to make new ones, rather than remaking and retyping everything. Because the Wounded Wisp and Slave Master's Mirror just disappeared after I made a new event.
They might be overwriting each other, we'll check into the functionality of the clone mechanism. Pause on using it for a bit while we investigate.