I'm currently working on a deign project and need to stack the layers in the panel ontop of each other (as you would with any project) to have some appear above/below the others. I am having a problem at the moment where I have a layer, Layer 01 sat above Layer 02 in the layers panel which would suggest it's showing above Layer 02 on the design board, but instead it's showing underneath. Even if I right click -> send to back on the layer above it doesn't seem to want to shift backwards.
Can you post a screenshot with the layer panel and the elements on artboard visible & selected, so we can better see what's happening?
Also, make sure you haven't activated the 3D transform by accident and changed the Z axis value, which positions layers one in front of the other based on depth in 3D space and not their position in the layers panel.
Very strange indeed. The only way I could break it is to temporarily switch the 3D transform on, set a Z value to the bottom layer, and disable it again.
The Z value stays, even though 3D transforms are disabled. So please enable 3D transforms, make sure you set the Z value to 0 for all the problematic layers, and turn 3D off again.
If this doesn't work, try the following - copy the problematic layers over to a new file and see if the issue persists. If it does, it would be nice if you can post the file here (or via PM), so I can take a look at it.