All pen-sensitive controls in Photoshop suddenly not working at all

New Here ,
Oct 23, 2021 Oct 23, 2021

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Hello, I'd just like to preface this by saying that I am desperate for help and have been vomiting due to the stress this has caused. Please help me.


My specs:

  1. iMac (Retina 5K, 27-inch, Late 2014)
  2. MacOS Big Sur 11.1
  3. Up to date Photoshop CC
  4. Wacom Intuos Pro m PTH-651
  5. Wacom Driver (6.3.44-2)


A few days ago, I was illustrating in Photoshop as usual when out of nowhere my brush-strokes started auto-locking into drawing straight lines only, as if I were pressing the shift key. Tapping the shift key would unlock my brush for about ten strokes, before locking again. Not once in the 7 years I've been using this keyboard have I gotten a sticky key, but I cleaned it anyways. No change.

Then after about a day of this, just as suddenly, I had a whole new problem to deal with. My brush strokes lost all pressure and/or tilt sensitivity. A warning triangle popped up in the control dialogue saying "control by pen pressure requires the use of a pressure-sensitive tablet."

I updated my tablet driver. I went back to older versions of the driver. I uninstalled and reinstalled. I restarted my computer countless times. I ran diagnostics on my tablet in System Preferences, and my computer registered the pressure of both of my pens. No change.

I went back to Photoshop. I restored all of my tools to their default settings. I uninstalled all of my preferences. I completely uninstalled and reinstalled photoshop twice. The second time, I lost all of my custom brushes because when I went to export them into an .abr file Photoshop only exported the one brush I happened to have selected at the time. No. Change.


I am at a breaking point. I am a freelance illustrator and if I don't get this fixed soon my income is on the line. Please help me.










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