Dynamic Brush Size Keystroke (control+option+drag) Not Working in Photoshop CC 2019

[darianp56561780]

I'm running Photoshop CC 2019 on a Mac OS Mojave: version 10.14.5

I have recently updated my machine to a new version, and as is the tradition with Mac updates, something in Photoshop has gone haywire. Now the control+option+left/right drag no longer allows me to change my brush size on the canvas. The keystroke does work when I hold control+option and then drag to either side with my Macbook's trackpad, but either the machine or Photoshop refuses to do the same action for my stylus.

I've already tried to fix the Photoshop shortcut preferences by resetting them and manually inputting the keystrokes I want; Photoshop's shortcut panel no longer seems to accept "control+option+drag" as a keystroke command at all, despite me having used it for years in the past. Brush size adjustment shortcuts is currently set to the "[" brackets option, which is wildly useless since I am right handed and my stylus has got to leave the canvas for me to get to those keys.

I've attempted resetting my Mac's keyboard and tablet settings as well, to no results.

This was an immensely useful shortcut for me as I am a professional artist, and the work just goes faster if I don't have to open the brush presets panel, or take my stylus off the tablet every time I need to adjust brush size.

[JJMack]

I believe this is a reported Mac problem. I doe not remember if it an OS problem or Adobe Mac Photoshop problem.  On windows there a different combination  used with a Brush Type tool active Alt+Right Click Drag up,down and Left,Right changes brush size and hardness and its functional in CC 2019 20.0.4.

[darianp56561780 · Accepted solution]

Hey folks, this morning I deleted the newest Mac OS driver update (Driver 6.3.34-2 released date: 5/16/2019) and reinstalled the previous driver.

This appears to have solved all issues for my Cintiq 22HD as well as my Intuos5 tablet.

I'll be reporting the issue to Wacom so that they might patch this mess for their next release.

[JJMack]

Good to hear you working....

[SuzanneTour]

Okay, the workaround for my machine (Mac Mojave 10.14.5, Magic Trackpad)is this: Use this alternative keyboard shortcut to change brush size/hardness:

Control+Option+left-click/drag  (Lynda dot com says to use Cmd+Opt+left-click/drag.)

Yay!

[Screamish]

This helped me! Thank you. 🙂