It would help if you could try to identify what triggers this "sometimes behavior" What OS what hardware what addons you have install your envirement
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It's pretty straight forward. PS CC2017.0.1 in OSX Sierra. It has happened on previous versions both of OSX and Photoshop.
No error messages.
-Nvidia GTX980ti, 32Gb of RAM, Corei7 4770K.
The problem is just as I describe it. If I use the pen to move a slider such as the layer opacity slider, or modify a value in an adjustment layer, sometimes the adjustment keeps sliding even though I've raised the pen, so it's not clicked. It also happens when I click on a layer on the layers tab, the layer sticks to my cursor as if I was trying to move it up or down the layers list.
It happens mainly with large images that contain a lot of layers (100% of my work) and, as with many other photoshop bugs, I've learned to live with it. It feels like photoshop hasn't noticed that I've unclicked until I click again somewhere else.
I experience the same thing on my Mac. I use an Intuos Pro 5 tablet, and have figured it's a tablet issue, not a PS issue but maybe I am wrong. Do you also use a tablet?