Using the Colour Picker tool in the current beta (1.6.0.86) I do not have to click for the colour to be selected
In the GIF I never click the mouse.
While the mouse is moving the colour is not selected.
If I stop, after about 1 second the colour is chosen, as if I had clicked the mouse.
This doesn't happen in 1.5
I have tried unplugging my tablet, starting a new file, closing and relaunching AD.