but to explain what exactly is going on, have a look at the timestamp 2019-07-06. You will see just a blue line, but in reality the blue line is covering the red line.
Here is another picture when the blue line is hidden.
Now look at 2019-07-06 again. You will see that there was a red line, but that didn't show up in the previous screenshot. Therefore, I don't really know if this is a bug or not. Please let me know, thanks.
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