The multiple traveler chests was a bug due to the game's integrated multiplayer component, so any time the files in the
...AppData\Local\Larian Studios\Baldur's Gate 3\... folders got deleted either manually or via a game crash, the game would treat the character as a completely new one with a blank slate with all their world interactions purged.
Which is why the game would also give the character a new traveler chest and make it their primary. The old chest would still have all the items in it, but "Send To Camp" would no longer work for that one because the original character assigned to it is considered "non-existent" in that playthrough.
You can try simply deleting the folder location mentioned above, it may still work if you really want it... but I don't recommend doing it.
It would be much smarter to simply use the in-game containers by placing them inside of your traveler's chest to organize it;
![[Linked Image from i.imgur.com]](https://i.imgur.com/MYIRhen.jpg)