So in the week or so since starting using the Dark Core I've encountered a couple problems. (all of this over 2.4GHz, bluetooth has 0 CUE functionality)
First, the mouse doesn't connect properly when its waking from sleep and loses my remapping and lighting profiles
Second, when going over wireless for the last couple days, the back and forward buttons no longer work, which in my experience with corsair mice is a CUE issue. However when connected over USB, it connects properly with all profiles and keys working.
I am using the latest version of CUE2