Reward Trait Cheats Not Working Correctly

Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Every time (100%)
What is your current game version number? 1.58.69.1010
What expansions, game packs, and stuff packs do you have installed? discover university, island living, get famous, seasons, cats and dogs, city living, get together, get to work strangerville, parenthood, vampires, dine out, spa day, outdoor retreat my first pet, laundry day, todler stuff, kids room. spooky stuff, cool kitchen, perfect patio holiday celebration pack
Steps: How can we find the bug ourselves? ctrl + shift + C testingcheats true traits.equip_trait player also traits.equip_thrifty
What happens when the bug occurs? nothing the player trait doesn't equip the critically connected trait is added not the thrifty trait
What do you expect to see? sims gains the chosen triat in the simology tab
Have you installed any customization with the game, e.g. Custom Content or Mods? Not now. I've removed them.
Did this issue appear after a specific patch or change you made to your system? Neutral/Not Sure 

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Having issues with adding reward traits to sims using the equip trait cheat. 

i was trying to make a poly household so needed the player trait to make it run smoothly but when i typed this into the cheat it didnt work.

e.g. 

testing cheats true

traits.equip_trait player

no trait was added to the traits tab

when testing to see if it was just this trait i found that other reward traits do not work or add different traits.

for example the player trait doesn't work at all but the thrifty trait added the critically connected trait