Hi @jamesson,
Thank you very much for sending the diagnostic logs and a short video of the issue.
It seems that the issue is somewhere in the settings of your Photoshop, since spacedesk can already receive the Pen input properly with another app.
Please check if the Pen Pressure is configured on your Photoshop brush settings.
reference: https://www.computerhope.com/issues/ch002027.htm
