New item problems

[DannieWest]

I got a yellow container for my custom story. The problem is, I can only get it in the game if i choose another entity, place it, and then click the "..." and find it in the folder where I have it. But then when I save and exit, and then wanna continue on the map it sais "Found some errors while loading the map" and the yellow container is gone :o Same with the breakable chandelier =/
Tried turning off/on the forcecacheloading thingy but none worked :o