2017.06 // i see no fix too
it's not about pointer itself (so forget about mouse vendors/drivers), there must be a "control layer" (watching where your pointer is, where you click etc - something like a virtual map above the GUI) and now, for some reason, some objects of this layer are too bold and overlap other important objects.
May be the reason is newly presented touchscreen support, if yes this will be a lesson to Cakewalk: every OPTIONAL (touchscreen is OPTIONAL for most users) function must be separated from core (mouse/touchpad support is a core function for every PRO DAW) or switchable.
Anyway we need a fix and please before 2017.7 :)