I'm aware of and working on this issue currently. The cause is the same as this and very peculiar. I hope to have a solution up within the hour.
Essentially, the click events don't fire properly on certain screen resolutions on desktop. A temporary workaround for the issue is to "zoom out" the website until the menu shows by default. Any resolution on desktop where the menu is hidden by default seems to be a problem. Any resolution or zoom level where the menu shows by default seems to register the click events correctly. Mobile apps are fine, as is desktop at most resolutions.
As was mentioned in the changelog for this update, a lot of back-end web code was altered but ironically not much in this area. All of the web libraries have been updated and it may be related to that, in the meantime I'll keep searching.