I am not sure if this is a bug or UX issue, sometimes I cannot select the layer I want. tThe handles are stuck at the background layer. I need to deselect the background layer and try to select my target layer again. Sometimes I need to repeat this several times in order to select my target layer. Since there are no layer list I cannot understand if it is because of layer hierarchy. I need to be able to understand what I have done wrong if it is because of my usage.
This issue should be made easier when we have a layers panel.
Sylvain Galineau commented
If your foreground and background objects are in a group you would need to double click the foreground object to select it. You can also ungroup them using the Object-Ungroup menu option.