After upgrading to 3.6.0, "Report date to load by default" when logging in is off by one (1) day if any of the following highlighted options are selected:
Here is the result in the dashboard:
The last day of the range is missing in the description of the X axis, but nevertheless the last point of the graph is showing the data from the correct day. You can see it while hovering on the dot.
Screenshots were taken 5 minutes prior to posting the issue. The second date in image above should be 2018-08-29 as it was prior to updating to 3.6.0 this morning. Note the date range is what is automatically populated when selecting "Last 30 days (including today)".
@mcmarable which timezone is you website in matomo set up? And which timezone has your computer configured?