Dear all,
When posting, please do check to see if somebody has reported the same issue before as:
https://moodle.org/mod/forum/discuss.php?d=338098
https://moodle.org/mod/forum/discuss.php?d=338045&parent=1363053
https://moodle.org/mod/forum/discuss.php?d=334985&parent=1363059
All talk about the same thing!
Essential is a complex theme. I'm investigating (https://github.com/gjb2048/moodle-theme_essential/issues/711).
G