I have an issue with Photoshop for a very long time now and it is at a point where I really get annoyed by that.
Very often I get this very weird pen-pressure sensitivity problem where it seems to turn of and on again resulting in messy brush strokes.
You can see where the pen-pressure just stop working.
I've found an very old article about this issue and I tested that method by installing a Wacom-Driver with pre-settings but my tablet (WACOM Intuos 4) doesn't react anymore after that.
I've had this issue since Windows 7 and still on Windows 10. I installed the latest Wacom driver and the latest Photoshop.
I am using Lazy Nezumi Pro for stabilisation but even when I turn it off or the times where I didn't used Lazy Nezumi I got this issue.
Also it is worth mentioning, that it happens to all tablets I used (Wacom DRAW, Wacom Bamboo)
CPU: i7 3770
GPU: Radeon R9 270x
RAM: 16 GB
Thank you in advance,
I use a Wacom Intuos Pro and have not see this.
Not much help in itself, but I have shared my settings below which may help you.
Driver version 6.3.17-3
Pen settings :
Note - above Windows ink is "on" for Photoshop
In Windows Control Panel - Pen and Touch flicks are "off"
One other thought - do you get this when wireless, if so have you tried a wired connection?