Solved An empty message field when trying to edit a post.

Hello,

today I had a strange and unpleasant incident when working with Kunena.
I started editing the post that I posted yesterday. I corrected half of the text and took a break, remembering the current state. 
When I wanted to continue editing the post, an empty field appeared to me instead of the beginning of the post.

Now in order.

1. We are talking about the topic ru.geschichte-chronologie.de/forum/12-ge...kty-primer---vivaldi

2. The problem arose after entering and editing the post for the first time ru.geschichte-chronologie.de/forum/12-ge...rimer---vivaldi#2985

3. Before the pause, I entered a few blank lines in the text to mark the place of the stop, after which I remembered the changes.

4. When trying to continue making changes to this post, that is, clicking "Action -> edit", the following picture appears on the screen.
 

5. All other posts respond to "Action -> edit" normally. For example, 
 

6. Just in case, I would like to inform you that I made the Kunena update to 6.3.0 the day before this situation occurred, and this work was the first after the update.

What to do?
Thanks

It as to something to do with the content of your post. Only solution is to edit via database.See also this topic
 

Thank you for your prompt reply.

Unfortunately, there is no link in "See also this topic".

Can you insert it?
Maybe I will find information there about the reasons why such a situation may arise.
I really don't want to act blindly.

Sorry, here is the link

Yes!

Indeed, such a small detail - square brackets - spoiled the editing of the post.

Thank you very much for the explanation and the link.

The topic is closed.