On June 2019 my Wacom Intuos Pro suddenly stopped working. Just in the middle of the working process. I have tried everything, to reinstall the driver, to disconnect/connect wacom back to my MacBookPro. To use it via Bluetooth. I even tried to make a hardware reset. No result. After some research I found the solution how to fix it. You need to go through some security settings on macOS Mojave. Check this video.
Check step by step instructions on Wacom website:
Download the latest Wacom driver: