Calendar bug
There is sometimes a very annoying layering "bug" on the calendar... When planning two tasks at the same time, the task that starts first is on the first layer; this works well except... when it doesn't. As you can see on the screenshot, what should appear as a few simple tasks over a first layer of time block events, gets very unreadable because of the infinite layering...
Screenshot explained:
Left : the problem
Top right: Before I set the tasks
Bottom right: (Outlook calendar) how it should appear