Re: Weird issues about my plumbot

@NorgePlayz  If you keep trying to travel and keep getting the same results, you might want to temporarily relieve as much stress on the game as possible.  Quit to desktop right before you want your sims to travel, and clear your caches again.  Turn your graphics options all the way down, don't login at either the launcher or Main Menu, and turn off the hidden object loading screens.  If you can, empty out the sims' inventories as much as possible.

These steps don't guarantee that the travel transition will go smoothly, but they could help.  (And you can reverse them all when your sims arrive safely.)  But if none of this helps, then there really isn't much more you can do without mods.  Even with mods, these things sometimes break; traveling is just so fragile that problems can happen no matter how careful you are.