Base game CAS assets showing from previous pack
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? 1.112.481.1030
What expansions, game packs, and stuff packs do you have installed? All EPs, GPs and SPs with some kits.
Steps: How can we find the bug ourselves? CAS filtering to use base game items only. Select base game items that used to be in a previous pack.
What happens when the bug occurs? The item will save to the gallery showing that a base game only Sim is wearing items from a pack.
What do you expect to see? Gallery upload should show it as base game only.
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
I created a Sim and saved to The Gallery. I used base game items only, but it was saved as using Get to Work, Get Famous, Seasons and Fitness Stuff. I went online to see if any of the Base Game assets were previously in those packs and I identified some, though I couldn't understand why Seasons was in there (perhaps because I did hot and cold weather looks). Below are the assets I identified as being from the previous packs but are now base game that I used on that Sim. It would help as well if there is one list detailing all the CAS assets that moved from previous packs to Base Game as I'm sure this will be happening elsewhere.
Hat - originally Get to Work
Jacket - originally Get Famous
Blouse - originally Get Famous
Leggings - originally Fitness Stuff
@LyxaOmaris In several cases, a base game item is given additional swatches by a pack. When this happens, the item still sorts as base game, but if you use one of the pack-added swatches, your sim will be tagged with that pack.
So to go through the items pictured:
Without Get to Work, the beanie only has 5 swatches. There is a bright reddish-orange one, but it's hard to tell if you're using that or one of the deeper red shades that Get to Work adds.
Without Get Famous, that jacket only has three swatches. The grey one in your photo is not base game.
Without Get Famous, that blouse only has three swatches. The black swatch is not base game.
Without Fitness Stuff, the leggings also have only three swatches. That black is not base game.
(I don't own Fitness Stuff, and disabled Get to Work and Get Famous to take the above screenshots.)