[I apologize if I make a mistake or if any sentence sounds strange, I'm Brazilian using a translator]
Well...
I have the same problem
It only resolved after I removed all the mods
I started playing now in patch 6 and using mods, I was never able to use the Traveler's Chest in the camp
I'm almost uninstalling the Steam version to download the "free" version again
When I played the "free" version I didn't have this problem