Split Rock Core Log Plot Vs Depth Continue To Depth

I have set up a split log for our rock coring using the "Bottom Depth Expression" feature in the log properties. The bottom portion that shows the rock works fine but in  the upper soils part all of the Plot Vs Depth features continue their lines to the total depth of the borehole instead of stopping at the bottom as specified by the "Bottom Depth Expression".

Do these features not use the "Bottom Depth Expression"? Is it possible to make a Plot Vs Depth conform top this?

All other entities stop at the specified depth.