Hello,
I'm trying the new editor 1.42 that is really nice and a big improvement to the previous one.
I believe there is a little bug with door item at least on my configuration. When you use contextmenu to change its direction (ie left to right), the door's icon is not updated immediatly. To make it change to the new direction you have chosen you have to go in its property pannel by double clicking on this door icon, where you can see that the new direction has really been changed but not visualy applied, and then make ok. This makes the door icon takes the good direction.
Ok, thanks for the report, this will be fixed in the next bugfix release.