Random "Teacher updated the comment box and clicked the save changes to reflect the comment" failure

01 Scenario: Teacher updated the comment box and clicked the save changes to reflect the comment # /var/www/html/mod/assign/tests/behat/submission_comments.feature:48

      And I press "Save changes"                                                                  # /var/www/html/mod/assign/tests/behat/submission_comments.feature:64

        Javascript code and/or AJAX requests are not ready after 10 seconds. There is a Javascript error or the code is extremely slow (io:1). If you are using a slow machine, consider setting $CFG->behat_increasetimeout. (Exception)

002 Scenario: Teacher updated the comment box and clicked on save and show next to reflect the comment # /var/www/html/mod/assign/tests/behat/submission_comments.feature:69

      And I press "Save and show next"                                                                 # /var/www/html/mod/assign/tests/behat/submission_comments.feature:85

        Moodle exception: Cannot read properties of null (reading 'innerHTML') File: Line: Stack trace: TypeError: Cannot read properties of null (reading 'innerHTML')     at Y_Node.DEFAULT_SETTER (http://webserverd30b5d0993d3fefc/behatrun3/theme/yui_combo.php?rollup/3.17.2/yui-moodlesimple.js:17449:27)     at Y_Node.set (http://webserverd30b5d0993d3fefc/behatrun3/theme/yui_combo.php?rollup/3.17.2/yui-moodlesimple.js:17580:39)     at http://webserverd30b5d0993d3fefc/behatrun3/lib/javascript.php/1670495687/comment/comment.js:22:386     at e (http://webserverd30b5d0993d3fefc/behatrun3/lib/javascript.php/1670495687/lib/jquery/jquery-3.6.1.min.js:2:30038)     at t (http://webserverd30b5d0993d3fefc/behatrun3/lib/javascript.php/1670495687/lib/jquery/jquery-3.6.1.min.js:2:30340)

        Cannot read properties of null (reading 'innerHTML') (Exception)