Grim Reaper taking way too long to reap.

Hello,

This happened before. But why does it take the Grim Reaper 2 or more hours of my time to reap a soul? And why can't I get out or save my game during a Sim's death? 

I am still waiting for the Grim Reaper to reap a soul that my werewolf killed.

I do us mods, but I am wondering if this is also a bug.