Sims wearing all the same weird outfit at festivals

[HighlandGaming]

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? 1.46.18.1020
What expansions, game packs, and stuff packs do you have installed? All, except the deluxe edition
Steps: How can we find the bug ourselves? I get it everytime my sim is travelling to a festival or the flee market
What happens when the bug occurs? Everytime my sim is travelling to the flee market or a festival all the other sims that are spawning there wear a group outfit, which is a pair of grey joggings with this white tank top that is full of colour spots. So far it has happened every time I go to one of these festivals. This is just one of many bugs I am experiencing since the season expansion pack and currently it is not fun to play the game anymore. I even tried to fix the bug with mods that prevent sims putting on special outfits for festivals, but that does not help either.
What do you expect to see? Sims not wearing a weird group outfit
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? Yes
Please describe the patch or change you made. Since the season expansion

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Everytime my sim is travelling to the flee market or a festival all the other sims that are spawning there wear a group outfit, which is a pair of grey joggings with this white tank top that is full of colour spots. So far it has happened every time I go to one of these festivals. This is just one of many bugs I am experiencing since the season expansion pack and currently it is not fun to play the game anymore. I even tried to fix the bug with mods that prevent sims putting on special outfits for festivals, but that does not help either. 

Other bugs I also have:

Invisible plants in the wild (all of them except if they were already grown plants when you start the game), sometimes they become visible if they produce something, but most stay invisible and don't produce anything 

Plants not producing any fruits etc. in science lab. Don't need watering there either but start smelling bad even though they look healthy. But you can throw them away if you want to. When you come back the next day they are fine again. 

Sims not going to work when toddler is home, I have to go with the sims or they just won't show up, but there are no penalties (so game acts as if sim went to work, but you won't get paid) 

Wrong decoration is up on the house, that I never picked 

No 40x40 gallery search button

Sims not part of the current family I play ignore thunderstorms and have bbq's in the pouring rain 

[crinrict]

Please refer to this list and post in the appropriate threads for your other bugs: https://answers.ea.com/t5/Bug-Reports/READ-FIRST-Compiled-list-of-reported-Gameplay-Issues/td-p/3445... .. it's best if you click me too on those instead of reporting here.

As for the outfit issue, did they occur before or after you put in mods ?

[crinrict]

Tagging @HighlandGaming for more info on the outfit issue.

[crinrict]

Moving this to tech issues for further troubleshooting and info

[IrisuChan]

not entirely related, but a bit. I just got city living so this is all new to me. When my sim goes with friends to a festival, my sim keeps her current outfit but other friends in the group wear different clothes (nothing that is set up in CAS). Can this be adjusted somehow?

[Tikaania]

Hi Me too, it is 26 May 2021, my sim went to the spice festival. Why is everyone wearing brown clothes?

(CM: Multiple posts merged. Check out this post for tips on how to edit and add more to a post.)

[crinrict]

@Tikaania Could you post a picture ? Do you have any stylists or gf trend outfits defined ?

[Tikaania]

Sorry I did not take a photo. I was just wondering why are all the sims wearing brown clothing to the spice festival. My sims kept her blue work outfit on. 

[crinrict]

@Tikaania The same brown outfit or just different outfits that were all brown ?

[Tikaania]

Different outfits that were all brown. My sim kept her navy work clothes on.