I met such a problem, when i want to replace millions or more matching words with new line regex \n ( to split the content into millions lines) . The replacing tasks looks took a very long time. and looks no responding.
I'm Using the lastest version.in window 10.
Can you check if this can be solved ?
 
                        
\nis an escape sequence as well as a regular expression. SelectEscape Sequenceinstead ofRegular Expressionsin the Replace dialog box to increase the replacement speed.