Editor don't work after update to 6.2.1

After my last update to Kunena 6.2.2 on Joomla 5.0.1 and Kay version to 6.2.1 i have problem with the templates editor. It gives my a 404 page. Page not found error.

With "Search Engine Friendly URLs" activated i receive the 404 error. If i deactivate the "Search Engine Friendly URLs" option then the editor opens without problem.

Hi cbal,
I tried to install the NTS Kay (6.2.1) on Kunena component 6.2.2, Joomla 5.0.1 and turn on the "Search Engine Friendly URLs" option. It's working fine when I create new post.
Please provide me your site information, I'll try to check this issue on your site.

Best regards,

Ok, I am sending in email. Just check the Reply button and not the quick reply.

Hi,
Thank you very much for your information. I checked this error on your website, this error also appears on Kunena's default template (Aurelia). I'm trying to check if there is any special configuration.

Best regards,

Thank u very much.

It was working without any problem before the last update.

I recreated the Kunena Menu from inside the administration panel of Kunena and the problem is solved.

It was a matter of links. There was a change from my Greek Forum menus url (/support-gr/) with the Kunena default menu (/forum) only on the click of the Reply button.

Thank you guys for the quick support.