I've been working with this program for awhile now, and I've had no issues with the z-order bar... until now.
For whatever reason, when I'm trying to select the objects in my level, and on the marked "Solid Objects/Obstacles" Layer, none of the objects are able to be selected in the z-order bar. It's led to a roadblock when I'm trying to create levels.
All the layers are unlocked and selectable, and all objects have been unlocked to allow all of them to be selected.
I'm not sure if it's something that I might be doing wrong, or some bug that's appeared... any help or feedback would be appreciated.