Matt Smith shows how to set a custom X axis range on Power BI charts:
The problem was the auto options for the X-Axis range was wrong and he recommended setting it manually.
To this is simple, click on the visual with the faulty X-Axis, then on the left hand menu, click the paint brush, then expand the X-Axis and manually enter the start and end
What’s interesting is that the answer came from submitting feedback from within the application.