I’m using LibreOffice 25.2.1.2 520(Build:2) on Debian Linux.
Trying to edit the scale on a chart, I am not able to obtain sensible options for values other than dates. My x-axis data is time, and I have tried formatting it as a date (datetime) and as a number. No matter what my data type, the only Scale->Type options are Auto, Date and Text - see screenshot.
Looking at the chart shown on your screenshot, I see it doesn’t show some details. Also, the image of the chart type settings has a low resolution.