I have several game setups in My Documents (Play, Screenshot & Build) on my old computer. Last summer I copied everything to my new laptop and everything works fine there. But now my new laptop is at the computer store so I want to play (freestyle) on my old laptop.
The only problem is that when I start the Play setup of my game there is no custom content available while it used to be. I double checked and custom content is enabled and to be displayed. (I didn't change anything to the settings since it last worked).
When I go to collections the collections with CC are empty, but if I then click "organize items" I can see all the CC in that collection. So it is definitely there.
I then started the Screenshot setup of my game (with way less CC) and then all CC shows up.
I restarted the game and let it create a new De Sims 2 folder. I added all the CC and then it shows up. It's just that play setup.
I think the issue is somewhere in the buy/build catalog itself.
Did anyone ever see such an issue before and/or what can I do to make CC work again?

Edit: SOLVED

I noticed that in Mansion custom packages don't show up on the first load of the game as if they weren't there or were incompatible. But they appear after a restart without doing anything else.

Well done, what did you do to make it work?