@jackiehhayes This seems like less of a missing objects issue than a travel transition failed hard issue. So the main goal here is to get the old world to load properly.
Before doing that, please load a new save and make sure all your existing content is showing up. That goes for both expansion and stuff packs and any Store or custom content you use. If something's missing, stop here and let me know.
Otherwise, try to lower the stress on the game engine as much as possible:
- Empty out your sims' inventories as much as is reasonable. Having a few items is fine, but not much more.
- Save the game immediately before you want your sims to travel.
- Exit to the Main Menu and lower all the graphics settings to the minimum. Turn off the in-game shopping experience and the interactive loading screens as well, then quit to desktop.
- Delete the five cache files in your user folder (listed above) again.
- Take your computer completely offline. You can sign in and put Origin in offline mode before disconnecting your computer and launching the game. Disable the Origin in-game overlay as well.
- Load the game, and once the clock has run for a few sim-minutes, send your sims traveling right away.
- Once they arrive in their destination, use "save as" to rename the save, then quit. If you want, you can first exit to the Main Menu and raise the graphics settings again, but be sure to quit to desktop before reloading the save.
If this doesn't help, I can take a look at your save. If you're interested, upload the save to a free filesharing site (Google Drive, Dropbox, etc.) and either post the link here or send it to me via private message. Please also list the expansion and stuff packs you're running and any Store worlds you've installed. I own everything except the Katy Perry pack, so I can use whatever you have minus custom content and smaller Store items.