P: MacBook Pro Apple M2 Max Laggy Liquify

Small update: After a further week of work the lag did not occur again. I did shut down the computer from time to time, but mostly just let it run. Must have been a random hiccup.

Yeah I´m aware of the limitations of the unified memory and knew 32GB was cutting it close for certain workloads. I was hoping once I have to dip into swap the fast SSD would save my bacon. I just find it strange that this only occurs during liquify. Otherwise PS is running quite stable.

BTW I never had this problem with Intel Macs (on paper much less capable systems).

Keep in mind the M series have an unified memory (RAM + VRAM together). So 32GB will sometimes not be enough, even if on another machine it was, unfortunately. I have a 64GB M2 and also reaching its limit sometimes, though I've never had a laggy brush. I do switch off and restart daily.

Ok spoke too soon, laggy brush is back after working with it for 3 days (no restart). Yes I´m working on the weekend.

I´ve up to 10 simultaneously opened 1-2GB files (25mpx, multiple layers). Firefox opened for music (5 tabs open). RAM nearly at max (29 of 32GB), minimal swap. Neither closing of all other apps nor restart of PS does fix the problem, but restart of the computer. The workaround (shift click on liquify in menu) does still work however.

For reference: Mac Mini M2 Pro (10core, 1TB, 32GB RAM), Ventura 13.4, PS 24.7

It´s in the tool bar (top of the screen) when the healing brush is activated. I´ve mentioned it mainly to provide precise infos, but it´s worth a try with the setting activated, although it´s quite an old option. I´d say a long shot if it fixes your problem.

@Felix31283606af5x I don't see that option anywhere in the Settings, Tools.  I'm the newest 24.7.0 version of Photoshop.  I've looked everywhere in the settings to change this and test to see what happens but like I said, I'm not finding it.

@wayne_carey 

I´m working all day (literally) with the healing brush and just tried spot healing now that you mentioned your problem, no lag whatsoever. I´m using the "new", post 2015 version of the brush ("use old version" unchecked in the tool preferences).

Hope you get it resolved.

Agreed!  Liquify does work but try using the Healing Brush.  I'm not getting it to work now.  When I use the Healing Brush, I see the masking line drawn but when I release the mouse, nothing happens and the brush stroke stays just like I painted a brush stroke in red.  NOT GOOD!  It does the same with or without graphics support.

Yup, PS 24.7 fixed it for me (Mac Mini M2 Pro/Ventura 13.4), I´m smoothly liqufying now without the workaround (temporarily disabling GPU via option key) 🙂

Man, two of the major bugs ironed out within a few days since I´m using CC, I´m feeling lucky!

@davidpearlman@me.com ,

Version 24.7 regular build contains the fix.