David

It’s the same for me, I just installed the plugin and create the first one. In preview mode, it works, but when I publish it, I obtain a 404 error and I can’t add it to my page.

By the way, @lorissardelli , I just saw that your slider is working at this moment.

After some minutes trying to figure out what’s happening, I just restored the backup and everything came to normal.

Oh sorry, I changed it because I needed to prove different things.
I changed again in order to reproduce the problem.

Now I added:
After this line there is a form (gravity forms) that should be shown to not logged users
THE FORM
BEFORE this line there is a form that should be shown to not logged users.
— MORE TAG —

And the form isn’t displayed
The page is https://davidaldavero.es/apnea/curso/nivel-1-aida-2/

I had the same problem, and I’ve just imagined a solution.
For the user registration I use the plugin Profile builder.

To accept students in every course, I would create a role for every course. Then with Profile builder, you can tell any page, post, or course, to be accesible only for a certain role.
Then you grant your user with the role of that specific course.
I’m trying to implement it now.

Temporal solution!!

I had the same problem. To fix it I just went to Settings – Permalink, and set it “Plain”, that is https://yourdomain.com/?p=123

This is a temporal solution because I don’t like this setting, I usually use “Post name”.

I realized when I checked the error log in the server, and I found a “File does not exist” error, refering “https://mydomain.com/wp-admin/post.php?post=16&action=edit” as the file.