Hi Daniel,
Well, yes and no. We discovered that the site’s theme was causing a problem. The calendar grid display was being suppressed (display:none) and other general styling (.post and .date) was using theme defaults which interfered with the display of the calendar.
I’m not sure how it got that way, as the theme hasn’t been updated since January 2017. I have no idea why suddenly it became a problem, since it was fine until the WP update to 4.7.4 and the EA update around the same time. I don’t see how the theme could be the source of the problem, as such, since it hadn’t been updated in months. The only thing I can think of is that EA might have specified CSS settings for the grid which were removed, and would therefore default back to the theme’s settings, but Nikola hasn’t confirmed if this is or is not the case.
The best way I found to override the theme’s CSS was to simply edit the theme’s CSS directly and comment out those style lines (.post and .date). Normally I wouldn’t recommend this, since any theme updates could overwrite those edits; however I discovered in the process that this particular theme is not being supported anymore, so there will be no future updates and no chance that the theme’s CSS will be overwritten.
So: I have done a workaround by directly editing the theme’s CSS and commenting out .post, .date, and also .postdata (which I had previously set to display:none to suppress display of the post’s date information). But doing this might not be a good solution for you.
I would like to see Nikola address this issue further, since obviously I’m not the only one experiencing the problem. I am also concerned that migrating my client’s site to a new theme (which is necessary, now that I know the current theme is no longer supported) could bring back the problem again. I would be very interested to hear how your problem gets resolved, Daniel.
Sorry for the long, complicated explanation, but I hope it will help you look into your problem if you know the details of mine. ??
Wendy