Objects do not appear as if they are in your inventory after placing them down in planning mode, this is generally an issue with objects that do not stack such as doors. After planning mode it seems that it does not add those objects to the plan and therefore they will not be placed even after inserting them into the box.

This is mostly fixed for doors and torches as of 0.3.0 - I need to evaluate each of these exceptions on a case by case basis, so add each type you have problems with (after upgrading to 0.3.0) individually as issues.