Object reverts back to non-modified state after joining I am attempting to make a tree but when I try to join the different components together ctrl J my decimated icospheres revert back to its original shape.  Any idea on how I can solve this?  I also forgot to mention that I am trying to create a low poly tree and that I am still in the learning stages.

The first image is the tree before joining and the second is the tree after joining
The object(s) that you select before the last object with the modifier will discard their modifier stack and inherit that (the last) object's modifier stack.

Easiest way to avoid any loss of modifiers is to apply them before doing any joins.