I m adding for example a business card background using "Add from designs" (I have uploaded some on fancy designs) and when I add a QR Code it goes back. I checked if the image has stay on top checked but it hasnt. However, when I upload a custom image or adding a text it goes correctly in front.
I can't replicate the issue on our test-servers. Please open a support ticket for this problem should you still have it and need help with it, as we'll probably need to login to your page and check some settings etc. (it's in general the faster way of getting help as well).