Can't switch between Sims

When I open my game, I’m able to play for about 10 seconds then when I try to switch between the sims in my household, I’m not able to unless I pause and unpause the game every time I want to switch sims, and when I try to speed up the game it resets the time when I go back to normal speed. 

I have a couple packs and kits like toddler stuff, tiny living, romantic garden, realm of magic, parenthood, growing together, get to work, and city living, as well  as the free kits, blooming rooms, desert luxe, holiday celebration 

and I’m on the 4th week of the grim reaper event 

I also use cc and have the Deaderpool MC command mod