Problems with Pure BD craft texture Pack

I bought Pure BD craft Texture Pack and I used it, then when I go back to the normal texture pack of MCPE, I open my world and I was not allowed to open my chests or any item that could be openable, Now I can just open the chests by using the Pure BD pack texture pack, and i want to play with the normal texture because I fell better playing with it, so please help me I want to play the new version.