P: 21.1.3 - Hue Saturation dialog not responsive

Again the Ruller? How could something so simple be the root of so many problems?
Clone Stamp, Healing Brush, Brush in General, and now the Adjustment Dialogs?
I'm scared to update. I'm stuck on 21.0.3 (0.3 not 1.3) and the ruller is always turned off. 

Again the Ruller? How could something so simple be the root of so many problems?
Clone Stamp, Healing Brush, Brush in General, and now the Adjustment Dialogs?
I'm scared to update. I'm stuck on 21.0.3 (0.3 not 1.3) and the ruller is always turned off. 

Hue saturation is not just the only problem, whenever I draw and use the hand(spacebar) to pan across the whole working area just moves to the right. Use the hand again and it will go further to the right and after a few tries, the whole thing freezes.

This is happening to me since updating to the latest version (21.1.3) today. It's not confined to hue/saturation either. Certainly I'm experiencing it with brightness/contrast and exposure dialogues. This is on macOS Catalina version 10.15.2.

you can temporarily downgrade to older version of photoshop 21.1.1. 

So everything that could help me to be back to normal is welcome.

Just hide the Rulers. 

If you actually like Layers then Adjustment Layers should be right up your alley. 

Gold days of adobe in the past... every new update - bugs, bugs bugs. 

That is pretty well equipped... I have noticed on my system, the one on which I use Photoshop, a Windows machine with 32 gigs RAM and Nvidia card with 4 gigs video RAM , and four tb of drive (one 1 tb SSD and one Western Digital rotary that is 3 TB) that nonetheless , after a long project, I get a warning about low RAM conditions. It always seems to track back to Chrome, which grows it's use of RAM over time and as a function of the number of tabs open. Solution I have is to save my work, then kill Chrome and Bridge, then restart them. Seems to clear up memory hogger Chrome!  I wonder whether that Chrome quirk might be at play for your system?

 I also note that you have Illustrator and Photoshop plus a couple of others open at the same time, so it COULD still be a RAM issue.

I am hoping that one of the Adobe people or Champions will jump in before the three day weekend is up!

Sorry, I'm sure I wrote a post with the specs yesterday, but it does not show up... 
So here are the specs: 

Catalina 10.15.4
Last update of CCloud
mbp 16'
32go Ram
Core i9 2,3
1To SSD (350Go free)
AMD Radeon Pro 5500M 4 Go
Intel UHD Graphics 630 1536 Mo
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In use when Photoshop's opened: 
FontXplorer, Illustrator, Affinity Designer, Chrome, Keynote and Spark.