Hi, I have added exceptions in the LIVE site and the problem still persist with wishlist page. I have added now to staging too for tests, and deactivated plugins.

Please note that megamenu issue is intermittent. One example is – go to non-archive standard page and hover over the first link of the menu. Megamenu do not open.
Please let me know your findings and suggestions how to fix it.
Thank you so much.