Tips for Avoiding Problems with Custom ContentOnce upon a time, I was a young kid who downloaded massive quantities of custom content for The Sims 2 in one sitting. This occasionally caused a number of problems, from a game that wouldn't load to messed up textures. I've come a long way since then and have been more careful with the files I download for The Sims 4. Hopefully, you will find these tips useful.
1. Organize Your ContentOne of the amazing things about custom content in The Sims 4 is that you are free to organize it by folder. In your Mods folder, you can add as many subfolders as you want. I have mine setup to include a folder for makeup, hair, clothes, flooring and so on. You can even have another level of subfolders in those folders. For example, you could have subfolders for each type of clothing.
2. Avoid Downloading Massive Amounts at OnceDownloading huge amounts of custom content at once can be fun, but it can lead a few problems. If you throw 300 files into your custom content folder and the game suddenly quits working, you'll have a lot of files to weed through to find the culprit. Downloading in small batches can help you avoid this problem. I also do this so that I can test new custom content in the game to make sure I like how it looks. If something isn't to my liking, it's easier to find it and delete it when I only just downloaded a few minutes before.
3. Clean Up Your Files RegularlyAlthough I have a fair amount of custom content, I haven't noticed my game running anymore slowly. However, I don't really want to see custom content that I never use when I'm playing the game. So, I make it a habit to go through and delete stuff regularly. Tracking down the piece that you don't want anymore is difficult if wait too long after you downloaded it. If you can't figure out what the offending piece is, however, don't despair. You can use Sims 4 Studio to preview files and remove them.
After opening up the program, click on "My CC". The program will then switch to a window that shows you the custom content files and mods installed in your game. Click on a file you want to check to see a preview. If you have your files organized by category, you shouldn't have too much trouble finding what you're looking for. Some files, like makeup, do not work, but flooring, hair and clothes should show up. You'll need to delete the offending file from your custom content directory, not through the Sims 4 Studio interface.