Hi,
The Evenly modes are designed to place segments at regular intervals and slice the default segments to fit in the remaining spaces. In this case it looks as though you would like the entire height of both segments to be used with no slicing, in which case the sequence operator is a much better choice.
Because it looks as though the segments have slice disabled, you will get a lot of overlapping and unexpected behaviour using Evenly segments unless you use Distance mode with Adaptive and Justify turned off and a distance value that is a multiple of the height of the default segments.
I hope that helps,
Many thanks!
Paul