2. Open Ugee driver and enable or disable Windows Ink and test with your Photoshop brush.
3. If step 2 does not work, you may need to use WinTab functionality.
Created a text file with the following:
# Use WinTab
Save the text file as PSUserConfig.txt into this location:
C:\Users\[User Name]\AppData\Roaming\Adobe\Adobe Photoshop CC 20XX\Adobe Photoshop CC 20XX Settings\
Restart Photoshop and test again.