Wordpress 5.0+ A new editing experience for WordPress is in the works, code name Gutenberg, Gutenberg is the WordPress default editor, replacing the previous classic editor. it has a bug with thai permanent link.
I fixed it by installed Classic Editor Plugin maintained by the WordPress team that restores the previous ("classic") WordPress editor and the "Edit Post" screen
Wordpress 5.0+ A new editing experience for WordPress is in the works, code name Gutenberg, Gutenberg is the WordPress default editor, replacing the previous classic editor. it has a bug with thai permanent link.
I fixed it by installed Classic Editor Plugin maintained by the WordPress team that restores the previous ("classic") WordPress editor and the "Edit Post" screen