Packs/Worlds showing as deactivated in-game/Not active after purchase

The Sims4 royalty and Legacy DLC won't display in game even though it's downloaded.
I.e no access to the career path, world or build components. 

Does anyone else have this problem? 

I have been having this issue as well...after playing around I think I have found a solution for now...even though it is a bit of a pain to do! In the main menu at the top its says Home and Marketplace....go to the Marketplace! Then My Collection, then you should see to the right 2 options Pack Selection & Manage Storage..click Pack Selection, find the pack u downloaded it will say deactivated (or something like that) click on it then the confirm option then follow what it says :) 

after playing around I think this is the solution for now...even though it is a bit of a pain to do! In the main menu at the top its says Home and Marketplace....go to the Marketplace! Then My Collection, then you should see to the right 2 options Pack Selection & Manage Storage..click Pack Selection, find the pack u downloaded it will say deactivated (or something like that) click on it then the confirm option then follow what it says :) also I don't think it matters where you got your pack :) a lot of people seem to be having this  issue!

I have bought packs from the EA store, after the update every time I try to open the game it says they're missing. from the EA store I see that they're installed but the game says they're not.

I am experiencing the exact same thing with this pack. I have also tried repairing the game, resetting cache then repairing and deleting the localthumbcache package and repairing, along with what the OP tried. I am on PC and all mods were removed, which also did not help resolve the issue. 

OMG. THANK YOU SO MUCH. BEEN SPENDING ALMOST THREE HOURS JUST TO FIX THIS. THANK YOUUUUUUU

Hi! I bought the vampires pack just yesterday, downloaded it and entered the game. At first everything looked normal. It showed up the introduction to new pack thing (sorry I have no idea how to call it), so I entered CAS thinking I'm gonna play the game with my new pack. But then, I noticed I don't have the option to make a vampire (there was only option to become an alien, from the get to work DLC), I can't choose clothes and hair from this pack, when I click filters, I can't even choose the option to select Vampires pack, because it looks like I don't have it, and there's no Forgotten Hollow. 
I tried re-downloading the pack itself, I tried re-downloading whole game, I tried deleting cache, turning off my mods and still nothing. 
Oh, and also I don't have the option to choose packs in game. In the place where it should be the pack turn on and off (again, no idea how to translate), theres a download manager option. When I click it, it's empty.
I hope you'll help me somehow. I was so excited for this pack:(

i have bought the sims 4 horse ranch package, i uninstall then install it again because my game freezes every now and then. Now when I start the game it says that the horse ranch package is needed to play otherwise I will lose things in the game. although i have installed it..

and i have restart my pc. 

This worked, thank you so much!