The new event window should open in full visibility.
A new event window opens with partial visibility.

18.0.0
Calendar app version: (see apps admin page, e.g. 2.0.1)
2.0.1
Browser:
Firefox 72.0.2
Operating system:
Win7 and Win10
Want to back this issue? Post a bounty on it! We accept bounties via Bountysource.
Double click on the calendar window.
I hate it how Microsoft conditioned all windows users to double click everything they see 馃槀
If you just click once it works as expected.
Reproducible with double click.
@Valdnet Did you find other things that do not work as expected when double clicking instead of just clicking once?
@georgehrke I clicked a bit on the calendar and haven't found anything yet :stuck_out_tongue_winking_eye:.
Doesn't need to be a fast double-click. It is enough to click the calendar event placeholder after the new event popover editor is opened.