Hello, I wanted to report what appears to be a bug in the analysis with amplitude that we may have encountered with end-to-end testing.

We attempted to group by session ID and filter cases in which users had performed 2 individual events within the same session. We expected 6 different cases to surface as per our tests.

We were successful in surfacing 4 of the expected 6 sessions using the amplitude logic.

However, 2 of the 6 expected cases did not surface.

When we searched specifically for these 2 session IDs, amplitude can confirm that in these cases, the 2 separate events that we wanted to verify were performed, were indeed completed. We would thus expect for these sessions to have been surfaced in our initial filtering. 

I am curious as to whether anybody else has encountered similar issues and whether this is a known issue?