Previous data points do not get generated while trying to view

[mohapatras]

Steps to reproduce:

1. Create line series using geared package.
2. Run and generate the data points for 1 hour or 60 min. So that line is created.
3. To see the data for a specific time (say 5 min), the logic has been written to pick data for that specific time.
4. While selecting a specific time duration as mentioned in the image, the line series does not gets drawn.

Version details:

OS: Windows 10 20H2
Dot Net Version: 4.5.1
Live Chart WPF Version: 0.9.7
Live Chart Geared version: 1.2.9

Description
Line Graph at 60th minute after continuously generating data points.
Image 1

Line chart after switching to 10 min duration to view the data.
Missing previous data points.
Image 2

Request to look into the above issue. Thank you