This conversation has been merged. Please reference the main conversation: Photoshop CC 2018: Shortcuts using Alt key aren't working correctly (e.g. Alt-Backspace)
In 2017, I used to be able to hold alt and press the arrows to make a copy of the layer. That no longer works for some reason. I can hold alt and drag the mouse, but that doesn't help me at all. I'm working on a grid, and everything needs to line up, so I use pixel counts to do so (in order to properly size mockups for our developers). Now I need to copy the layer by alt-dragging the mouse, then move it back to it's original position, then use the arrows to move it. Why was this changed?
Along the same lines, I often use shift-arrows to move things by 10 pixels. Half the time this works, 25% of the time it doesn't move at all, and 25% of the time it moves by 1 pixel instead. All while I'm still holding the shift key (not even letting go in between!). I use this function hundreds of times a day. These issues have slowed down my production by half!