I don't understand why you say that the LP-A in row 3 and Test-A in row 1 are the same landing page. Please confirm the following.
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They may appear to be identical, but are physically separate landing pages?
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Different leads are going to those landing pages?
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Whatever you are using to drive traffic to those two landing pages has a different link for the two landing pages?
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Is the content the same or different on whatever you are using to drive the traffic to those two landing pages?
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The landing page in row 3 has 1 less day of activity than the landing page in row 1?
If you are driving different people to these landing pages using the same CTA for the same period of time, your sample size is so small that the difference is probably not statistically significant.