P: Brush Outline/Circle disappearing when working with masks

@Chad Rolfs  I turned off the window ink of Wacom tablet, rebooted after deleting the command line of psuserconfig, checked the sysinfo of Photoshop to confirm that it is in windowink status.
Well, I don't think there's a problem. But it's so random that I'm not sure it's related to this.
Because I returned to the wintab setting I used to record and tried again with the same picture, but there was no bug.
It's so random. I think there's going to be an exact reproduction stage...........................
I can assure you that
1. Tablet Only, when use mouse? no problem.
2. Brush or Clone Stamp, I've seen a lot of these bugs when I'm not tapping and clicking (like a mouse), but when I'm holding a tablet's pen and repeating the stroke at the same point.
3. PS 24.1 only, I've never experienced a bug like this until PS 24.0. (From PS 2015.5 to PS2023 even if  hold it wide)

All I can be sure of is this.
And this doesn't seem to have much to do with idle memory and CPU share of the computer. It's because I've experienced at least what happens with all of my Windows systems (desktop, laptop, company's desktop).
What's strange about this is that even if there's a bug (the cursor of the brush is not visible, just the cursor of the window mouse is visible), it's okay if you just ignore it and continue working.

It's very strange.

If you're experiencing this issue, are you using WinTab or Win Ink.  The easiest way to tell is, from Photoshop, go to Help > System Info and look for this close to the top but you'll need to scroll down a bit (if you see this, you're using WinTab): 

PSUserConfig entries:
 - K uSty UseSystemStylus 0

If this is enabled, then also check your Wacom Tablet Properties - Calibrate tab, to see if you have Use Windows Ink checked in the lower left corner.  If you have both of these enabled, that could cause a conflict.  
If you are using WinTab, would you mind disabling it and see if the problem persists?  (To temporarily disable it, open the PSUserConfig.txt file in your preferences folder and simply add a # in front of the string, save the text file and relaunch Photoshop, you'll want to make sure Use Windows Ink is enabled in Wacom Tablet Properties). 

There are so many variables and we really appreciate you helping us track this down. 

I've been experiencing it today. The shape of the Windows 10 mouse cursor continues to be seen when stroke dragging is repeated with a tablet while cleaning the background with brush and clone stamp.
As someone else said above, I clicked on turning the work details directly back to before and proceeded, but it continued to occur. The bigger the image, the more often it seems to occur. (24.0 does not have this problem)

@J453 I will provide the file link via PN.

@Belichtungsquartier Would it be possible to get a copy of the 'bad' "MachinePrefs.psp" that you removed? Post a URL to the file using CC files or dropbox, or something similar to share the file.

Today the issue I had initially described becomes present again with the update from v24.0.1 to v24.1.

The interesting thing, it was totally the same issue as shown within this video (post from Dec 06, 2021).

Then I mentioned in this post from Dec 01, 2022 that fortunately I have fixed the issue with help from the adobe customer support.

The only thing I had to do was to delete the user preferences from the affected version.

Today I did the same to first back up the complete settings as described in this article from Adobe "Backup preferences".

I have created a backup of just this directory 

"Users/[user name]/AppData/Roaming/Adobe/Adobe Photoshop [version]/Adobe Photoshop [version] Settings"

In my case it is exactly:

"c:\Users\<MY_USER_NAME>\AppData\Roaming\Adobe\Adobe Photoshop 2023\Adobe Photoshop 2023 Settings"

Step-by-step procedure:

1. Ensure that the application Photoshop is closed and not running
2. Backup the data with the settings
3. Delete the complete directory manually with the file explorer
4. Start Photoshop
5. The issue was gone and no longer reproducible

After I have realized that the problem was gone I have compared both directories to restore my previous settings but without taking over the bug again into the settings. For this I have compared the directory that was created again from scratch by Photoshop with the other one from the backup.

There were a lot of *.psp files that seems to be different. I decided to trial and error and took over one *psp file after the other to identify the file causing the issue.

To restore all my previous settings and ensure the issue is gone, I have identified to just isolate the file "MachinePrefs.psp".

That means, I have restored the complete settings directory from the backup and just deleted this single file.

After that you will keep all your previous customized settings without the brush issue.

It seems that you have similar issues than mine and not totally the same. But give it a try on your system to check if this will fix the problem on your side too.

Kind regards

@jeromea13244388  Yes. In 24.0, I tried to re-run Photoshop several times and never got a bug.
But I think I should use 24.1. The ability to see the edges of the brush thickly started from 24.1.
I hope it's fixed at 24.2 soon! 

I can confirm that the bug doesn't appear in version 24.0.

@Jqqerry: It seems we have the same method. The only difference is that by just clicking in the last history state instead of hitting ctrl+z, i don't go back in the history and my work is not undone.
I see that you said that the bug doesn't occur in 24.0 so I will just downgrade.

And "what's certain" doesn't happen in previous versions (24.0). And it's not a matter of configuration.
Because I always consider and prepare two things when I update the photoshop version.
1. Back up or take notes of the configuration settings and shortcuts that I use (because I manually reset the configuration settings because they can be pasted and bugs can occur again).
2. Always try to keep your graphics driver up to date. (Studio drivers).

So this is the sole problem of 24.1.