Toon Boom Harmony Essentials 17 drawing tools only erase

I recently downloaded a trial of the latest Toom Boom Harmony onto my Windows laptop and my pen and brush drawing tools only erase. I’ve exited the program and restarted it and tried shortcuts, but the drawing tools only erase. I would greatly appreciate the help!

Please help I do not want to waste my trial…

Try uninstalling all tablet drivers and preference files, then reboot and
re-install the latest tablet driver from the manufacturer’s web site. If
this does not correct the problem, please contact support to have a look.