I got my Z3 today, hooked it up and it auto loaded my existing profile. I have 45% force deep click mappings for LMB and RMB. I noticed that while the LMB seemed to work just as it did on my Z2, the RMB deep click was going off as soon as I pressed RMB instead of only on deep click (I have a vibration set so that I know when I've passed the deep click threshold). So I factory reset by unplugging, holding down LMB and RMB and then plugging back in, and now the deep click on LMB is bad too. Basically it will deep click immediately even if I set the force to 99%. The deep clicks are using the Toggle Region setting.

So I cleared my profiles to use the default one, and then set a deep click on LMB, and the problem is the same. This is using X1 Control Panel 3.1.2.3 with the latest firmware for the mouse and the swiftlink, and it happens in both wired and swiftlink modes.