Post installation

We are getting 404 error while editing pages. The pages work fine and display fine but for the past few days we cannot edit it always shows 404 error. Have done everything possible but not able to rectify, please help with possible causes.

With threads and comments and images embedded in them?  Forums almost does it but it doesn't have comments and images show up inline.

Any idea on how to do this? Views?

On Drupal 10.3.8 I want users to be able to unpublish their own content (they have access to create content of particular content types based on their roles).  It doesn't look like core has this ability.  I tried the "Publishcontent" contrib module that added a permission to unpublish their own content, but it looks like it is buggy in Drupal 10, users can unpublish their content from the admin/content overview page but on the actual node edit page the published checkbox now appears but cannot be toggled (is grayed out).  Is there a way to allow these permissions on Drupal

After upgrading to D10.3.8 and performing the upgrade to Twig 3.14.2 it is impossible to save or edit any type of previously created content.
The log files do not show any error messages.

Does anyone know what this may be due to? 

On my mac ( intel i5 and m2 both versions of Macbook air)

- Once installation is complete and try editing or viewing taxonomy or node data it results in error page which says page didn't send any data.

- I have faced this issue from the start of D10 version to till the date, initially i thought its mac related issue, so tried on windows laptop as well but same result.

- I also tried my new M2 Macbook air, but same issue persists.

- Also there is nothing captured in recent log messages of D10.

- Same laptop it works fine with D9 installations.

After migrating private files from a D7 site to D10, I'm getting Access Denied when trying to download files even as the  admin user. I'm able to view the content the files are attached to and see the links, but get the following message in the log when trying to download:

Path: /system/files/filename.pdf. Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException: in Drupal\system\FileDownloadController->download() (line 82 of /var/www/drupal.spiders.net/web/core/modules/system/src/FileDownloadController.php).