I use a Wacom Mobilestudio Pro 16 for illustration and design. While working today I realized that I could no longer open or expand 'layer folders' while using only the pen, it would just click and do nothing or bring up the 'layer styles' window. This occurred even with every other layer and pen function being normal. I always have a regular mouse connected and switching to that would work just fine, but not with the pen, on different documents.
Very tiny random and iffy, but wanted to post something for it to be addressed.
I believe I recently had the same issue you are describing with my Wacom Cintiq Pro 13 on Windows 10. When I would try to collapse or expand a folder in the layers panel in Photoshop (PS), nothing would happen other than multiple layer buttons flashing. The issue did not occur with a mouse.
I was able to solve the problem by turning off Windows Ink for PS and pasting a “PSUserConfig.txt” file into the PS preferences folder. Since this fixed my issue, I am guessing the PS folder issue was caused by an OS update to Windows Ink as I did not notice this issue before.
If you need instructions, see below:
TO FIX FOLDER EXPANSION
-Go to the “Wacom Tablet Preferences”, select your pen, and select the “Calibrate” tab
-Uncheck “Use Windows Ink” (Will disable pen pressure, which is fixed in the next step)
TO FIX PEN PRESSURE
-Create a blank text file on your desktop and name it:
-Paste the following into the text file and save:
# Use WinTab in PS CC for
Wacom Tablet not INK
# Transform CC 2020 scale mode unconstrained
-Go to File Explorer and follow the address below to find the PS Folder:
C:\Users\YourUserName\AppData\Roaming\Adobe\Adobe Photoshop 2020\Adobe Photoshop 2020 Settings
-Paste the “PSUserConfig.txt” file into the “Adobe Photoshop 2020 Settings” folder
As other users have suggested in the past, I typically use these settings with a drawing tablet and PS. However, new PS versions use different folders which require new “PSUserConfig.txt” files. I am not sure if I forgot to turn off Windows Ink or if it was turned back on by an update. Hope this helps.
Turning off windows ink within the wacom settings and changing out the PSUserConfig remedies the issue 100%. SO AGAIN.. after reinstalling software, drivers etc... this seems to be yet ANOTHER issue between PS & windows ink.
It's 2020... why is this even a thing? Adobe seriously needs to do better.