Yes, still replicates for me every time (in latest build 5.1.0.2817). Here's some steps:
1) Make sure you have both the Playing and Preview panes visible in the right panel.
2) Drag the vertical separator bar to the left so the artwork width is quite wide
3) Drag the separator bar (between Playing/Preview panes) up so that all the text elements are displaying above the artwork
4) Quit and Restart MM5
5) The height of the right panel separator bar isn't remembered
See screenshot of before and after restarting MM5:

So as you said before, the width of the right hand panel is remembered but the height (between the Playing and Preview panes) is not.



