Further details tracking this down. While this seemed tied to the Gutenberg editor setting in the Event Calendar’s “General” settings, it seems that it is actually a bug in the way Enfold overrides the Event Calendar’s “Display” settings. Essentially, out of the box, the overrides do not come into play. Once any setting (even in the General tab) is changed for the plugin, however, the Enfold changes seem to take over, mucking up the display output because a “Default view” is no longer selected. Saving the “Display” settings page in the plugin forces that to update and causes Enfold to properly output the events page if and only if the option “Use updated calendar designs” is unchecked (which it is not by default).

So, there are a couple of things that likely need to happen here — if the Enfold theme can set its changes for the plugin settings upon plugin activation, that would help it not seem broken at first. Additionally, the Enfold theme likely needs to be updated to handle the new calendar designs provided by the plugin.

I hope this extra info is helpful in resolving this buggy output in the next update of Enfold.