Product: The Sims 4
Platform:Mac
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? MAC 1.58.63.1210
What expansions, game packs, and stuff packs do you have installed? 4 expansions, 4 game packs and 4 stuff packs
Steps: How can we find the bug ourselves? Use the gallery with more than one DLC pack installed, but not all.
What happens when the bug occurs? In the Gallery, when choosing the Packs filter dropdown option called "Show Owned", the content listed as a result doesn't have any relevance to the packs you own. It lists pretty much any content because in my case, when I own 12 packs, it'll list any creation that contains just one thing from one of those packs, even if the creation also contains things from packs I don't own. What "Show Owned" does is tick all the boxes for packs you have in the filter option below, but ticking those boxes gives results that are "inclusive". Even if that inclusive behaviour could be by design, this behaviour can not be considered "Show Owned" in any useful form and has to be considered a bug.
What do you expect to see? Either "Show Owned" must be its own filter, or unticking pack boxes should "exclude" creations containing things from that pack.
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? No
This is an old issue, but apparently there used to an "include unowned content" checkbox instead of the "Show Owned" dropdown option. The "Show Owned" dropdown option is buggy.