Hello, I created this post because I am having a solution or a correction of this bug in the next update to come. When I'm in the editor mode and I use Zeus mode to edit in 3D to add building, object etc ... I can not keep my mod, although I did save or save and exit. Also in the 2D editor there is not as much building, object etc ... in zeus mode. thank you to respond to a topic and to settle the problem faster if possible. (I'm french and I use google translation to write to you to post lament the fault.)