the feature 'select subject' has become invalid

@niasel_6528 you can upload to a shared folder or YouTube or...

1. Try resetting Prefs for the Beta:
/Users/yourname/Library/Preferences/ Photoshop Beta Settings (Mac Ventura)
/Users/yourname/Library/Preferences/Adobe\ Photoshop\ \(Beta\)\ Settings (Mac)


C:\Users\user name\AppData\Roaming\Adobe\Adobe Photoshop (Beta)\Adobe Photoshop (Beta) Settings

Launch BETA Photoshop While Pressing The Keyboard Shortcut
With Photoshop closed, press and hold Shift+Ctrl+Alt (Win) / Shift+Command+Option (Mac) on your keyboard and then Launch Photoshop the way you normally would.
https://helpx.adobe.com/photoshop/using/preferences.html#Manually 

2. It may help if we could see your Photoshop beta System Info. Launch Photoshop beta, and select Help >System Info...and copy/paste the text in a reply.  

Thanks,

Cory - Photoshop Product Manager

How to upload videos?

Hi @niasel_6528 please share your workflow, the steps you are taking to see this issue.  Please compare what you do in Ps release version what you are trying to do in Ps Beta so the team can try to reproduce or understand what you are seeing.

Video screen recordings or screenshots are also helpful.

Thanks,

Cory - Photoshop Product Manager

When I manipulate high pixel images, I would divide the image into small blocks and then 'select subject' for each block, but now this method is ineffective. Moreover, the operation of 'select subject' for the entire image is not effective.

I use the block operation on large images in Photoshop v26.10.0, and the function of 'select subject' is useful.