Basically the latest drivers won't see a monitor if it's been driven by an eGPU in MacOS Mojave.
6.3.30-2 is the latest driver that that works with eGPUs.
Please Wacom.
Wacom Customer Support page: https://support.wacom.com/
Product Registration:
Please register our products on https://www.wacom.com/register
How do I register my Wacom device?
Drawing software:
If you are not able to register, please use the trial version of the software below and try to register again at a later date.
Wacom Drivers:
March 2018: New driver released for Windows (6.3.33-3) and Mac (6.3.33-5). Download drivers and release notes here: http://www.wacom.com/support/product-support/drivers
Touch not working correctly after Driver 6.3.33-5 update for Mac:
http://forum.wacom.eu/viewtopic.php?f=11&t=2581
Mac OS 10.14 Mojave:
Upgrading to Mac OS 10.14 Mojave? A new Mac OSX security feature requires some additional changes to run the Wacom Driver correctly. Please see the instructions found on our support page here. Also, If you have any issues, please try a clean driver install. Follow the steps here.
European Warehouse Inventory:
The European team will be doing inventory from the 27th to the 29th of March. This means that short delays will repairs, order shipping and refunds will occur. We expect to get back to normal schedule on the 1st of April.
Product Registration:
Please register our products on https://www.wacom.com/register
How do I register my Wacom device?
Drawing software:
If you are not able to register, please use the trial version of the software below and try to register again at a later date.
Wacom Drivers:
March 2018: New driver released for Windows (6.3.33-3) and Mac (6.3.33-5). Download drivers and release notes here: http://www.wacom.com/support/product-support/drivers
Touch not working correctly after Driver 6.3.33-5 update for Mac:
http://forum.wacom.eu/viewtopic.php?f=11&t=2581
Mac OS 10.14 Mojave:
Upgrading to Mac OS 10.14 Mojave? A new Mac OSX security feature requires some additional changes to run the Wacom Driver correctly. Please see the instructions found on our support page here. Also, If you have any issues, please try a clean driver install. Follow the steps here.
European Warehouse Inventory:
The European team will be doing inventory from the 27th to the 29th of March. This means that short delays will repairs, order shipping and refunds will occur. We expect to get back to normal schedule on the 1st of April.