Graph doesnt show lines between datapoints

[Nitaro209]

Expected Behavior

Graph shows line between two or more point

Current Behavior

Only points are displayed without lines

Possible Solution

Steps to Reproduce (for bugs)

searchType: Tag
searchTarget: Std-One, Std-Two
datasetName: One, Two
folder: Folder1/Folder2
line:
    title: Test
    lineColor: blue, red
    yAxisLabel: Stunden
	xAxisLabel: Datum
    showPoint: false
    showLegend: true
    legendPosition: bottom

Context