Sorry! Will do.

When I try to make E1211 recurring (see screenshot below), I get

• D16866 is just what I needed, thanks!
• D16867 fixes what I reported, but I hadn't noticed that the month view tooltips are also affected in the same way:
  

When creating an event, the date picker may be drawn partly off the screen:

• LGTM, thanks.
• That icon makes sense now that I know what it indicates. I doubt that there's a universal icon for this particular purpose. Maybe something like (or the open version added in the newest FA), but that's still unclear if you don't already know what it means.
• That's reasonable.
• I created the all day event E1211 to span the 14th and 15th (see image below). It appears correctly in the month view, but the event page says:

Thank you for giving Calendar some attention! Looking forward to it becoming a proper grown-up application.

If you're using ElasticSearch on your install, can you let us know why you're choosing to configure it over the builtin MySQL search?