gwalk

Hello, @azaozz sure. Sorry for delay 🙂 Here is short description.
1. I have disabled <mark> tag and it solved first problem.
2. I have debugged 2 problem a little bit. Guess that the problem was about copying text from wordpress default block editor to tinyMCE. This action produces unnecessary empty <p>. When I’ve copied text from web page to text editor (sublime) and then from sublime to tinyMCE the problem gone. But I’m not sure, cause sometimes everything works correctly. Will check and let you know.
Thanks!