Control-Option command in Photoshop not working

[kmdmd1]

I updated Mojave to 10.14.5 and do not know if this is the issue or not but since that time when I use the control-option command it no longer changes brush size and instead changes image size : zooming in and out. Is there a fix for this or is there a setting I need to change?

Thank you.

[gener7]

That Ctrl-Option drag left or right for brush size does work on my 10.14.5 Mac.

First make sure the Spotlight shortcuts are not the problem, disable those: Apple System Preferences > Keyboard

[gener7]

Next go to Edit Keyboard Shortcuts and hold down the Option key. Cancel changes to Reset. Click on Reset and see if that fixes the problem.

[gener7]

Reset Preferences is the last ditch idea.

[bigbobbyd]

I have the same exact problem and none of the instructions listed here work.  I even installed PS on a clean OS High Sierra install and it still does not work

[marcbichi]

SAME PROBLEM HERE!