problems with classic editor and password protected pages

[heredatedwp]

I just update to 6.5.4 and configuration of password protected pages just stopped working. Use a backup of this machine with 6.5.3 and it start working again.

Are you using either the latest version of WordPress, or the latest development version? If not, please update first.

-I'm using rightnow 6.5.4

What steps should be taken to consistently reproduce the problem?

• Update form 6.5.3 to 6.5.4 and try to create a password portected page

Does the problem occur even when you deactivate all plugins and use the default theme?

-didn't try.

In case it's relevant to the ticket, what is the expected output or result? What did you see instead?

-I expect to password protect a page, instead is taking too much time to save, at least a minute. After that I get a white page and not changes are saved.

[wilbert@…]

Reproduction Report

This report validates that the issue can be reproduced.

Environment

• Windows: Windows 11 Pro
• Web Server: Nginx 1.22.0
• PHP: 8.2.15
• WordPress: 6.5.3
• Browser: Chrome and Firefox
• Theme: Twenty Twenty-Two
• Active Plugins:
  • wordpress downgrade 1.2.6
  • Classic editor 1.6.3

Actual Results

1. Installed wp version 6.5.4 localy;
2. Downgrade to wp version 6.5.3 using plugin downgrade plugin
3. Created a page with password protection
4. Open the page and fill in the password, page is opening
5. Update wp to version 6.5.4 using plugin downgrade
6. Checked if I am able to open protected page (created in version 6.5.3), working fine
7. Created a new page with password protection
8. Visiting new page , fill in password, all working fine

Additional Notes

Supplemental Artifacts

[saarentaus]

Reproduction Report

This report validates that the issue cannot be reproduced.

Environment

• OS: Windows 11
• Web Server: Nginx
• PHP: 8.3.6
• WordPress: 6.5.3
• Browser: Chrome
• Theme: Twenty Twenty-Four
• Active Plugins:
  • Classic Editor 1.6.3

Actual Results

• ❌ Error condition does not occur (not reproduced).

Steps taken

• Fresh installation with WP version 6.5.3
• Successfully created post and page with password protections, checked they work
• Updated to WP 6.5.4 via WP CLI
• Successfully created post and page with password protections, checked they work
• Downgraded to WP 6.5.3 via WP CLI
• Successfully created post and page with password protections, checked they work
• Updated again to WP 6.5.4 via WP CLI
• Successfully created post and page with password protections, checked they work

[heredatedwp]

After your test I tried some more debug.

It seem is this plugin fault:
​https://wordpress.org/support/topic/password-protected-pages-not-working-after-latest-update/#post-17822729

Thank you for your support.