Today I ecountered a bug in game, and after testing with mods I found out is an Overwatch bug.
Tested with Overwatch 123e.

What happened is that, in vanilla game, when you create a custom setup for your performance, the stage will delete the venues setup and only show the custom setup. Your sim won't get the venue setup props in family inventory. The next day it will reserve back to venue setup display. I have tested with all other mods I have installed except overwatch.

https://imgur.com/X8HlnfG

I tested with only overwatch installed, and when my sim setup the custom stage, the venue setup props will also appear too. When sim ended the performance, they got all the custom props and venue setup props, and venue setup didn't reverse the display the next day.

https://imgur.com/GVEKEz2

Is there anyway to fix this? Thanks for your reading.

I've go through all nraas tunable and the only thing I found similar is "clean all concerts" which I don't know what it meant... However it didn't work

I have a problem similar to this one mentioned here. With overwatch installed the show stages do not work correctly, it happens to me that when the sim finishes the performance, the objects on the stage are not deleted, they remain as "ghosts" on the stage but they also appear in the inventory of my sims, if I delete the objects from the stage, they are also deleted from my sims' inventory, it's funny but if I want to play Showtime careers it is impossible to use Overwatch in the entire save, the game becomes apparently corrupted.
I can't find a way to solve it beyond uninstalling Overwatch. I have tried it without "extra" mods, only with Overwatch to know what was happening, and yes, it is indeed this mod.

i wonder if my showtime issue is related to overwatch as well, i am having the basic props and custom props appearing on stage after a show as well but thats not my problem

my issue is while performing a show, about an hour before its supposed to end the stage resets itself, all props disappear, singer resets to edge of stage and sims come up onto stage to talk to singer but no money is paid, i can resetup the stage and finish the show and it seems to be about 50/50 on whether sim gets paid