can you attach a packaged workbook?
I think the issue is that your hours column isn't stored as a time segment, just a number.
I believe that you can work around this with the following calculation to create a continuous date time stamp, and replace the columns of the graph with the continuous Hour() of the new calculation.
Below is mock data
Let me know if I am missing something.
Mock data.twbx 18.4 KB
This is exactly what I needed