How to fix editor issue in Joomla + virtuemart?

Question

Joomla

Hello everyone, I have a problem with Joomla! 3.8.0 + VirtueMart 3.2.4.
After the update, the custom field of the editor type stopped working.

I even installed everything separately by default and everything is the same. as in a combat project.
There are no errors in the console and on the site too.
I found this line in my code. When executed in the console, FALSE is returned.

// Creates a new editor instance
tinymce.execCommand("mceAddControl",true,"field-0-customfield_value")

But if you use this design, then it works

tinyMCE.execCommand('mceToggleEditor', false, 'field-0-customfield_value');return false;

But I can't find where in the admin template to write this line instead of tinymce.execCommand("mceAddControl",true,"field-0-customfield_value")
I also noticed the problem that Related Products and Categories are not saved in the new version.