Seems to be a weird bug when panning around the node editor in RC4. Will pan quicker than I am moving the mouse. Also for example when clicking and holding the pan button or using the middle mouse, if you continue holding the button, but stop moving the mouse, it will sometimes keep panning.
OS: Windows 10 64 bit
Version: B2 rc 4 (core 3 (DailyBuild Oct 15 2018))
Cinema version: CINEMA 4D Studio R20.028 S