I just wanted to say, if anyone else has the same problem, the only way I managed to resolve it is by aging ALL the children (three of them). Once the original child that was "targeted" was aged to a teen, the next one was on the schedule to die due to neglect. I feel like this is a bug with the latest patch (I could be wrong of course but I got the Reaper event message and it was indeed fishy). All three children were happy, doing very well at school etc. I tried moving a child to a different household, deleting mods, repairing the game, deleting cashes etc. but nothing worked.
Tbh, this made me like this game a bit less because I was playing "This is Us" scenario and poor Randall was not supposed to die or age up to a teen before ever going to a swimming pool or learning to ride a bike lol
