NGX Charts Area Chart, multiple x values

Question

I am having problem displaying multiple x values in area chat.

Works well when: [0,1], [1,2], [2,3] ...

Doesn't work when : Draws, but doesn't produce circle anchor points for multiple values while x is same. Example data set: [0,1], [1,2], [1,3], [1,4], [2,5] ...

Desired behaviour is an anchor point for each provided value. Currently I am ending up with jumps in area path but no anchor points. Please refer to attached screenshot for more clearance.