Bug in scrolling

[dav4is]

When using grouping, scrolling skips display of some emails.
Using either page down or clicking in the scroll bar, one too many emails are passed by, i.e. if X should become the top of the list, X+1 will instead be at the top, skipping X.
This does not happen unless grouping, by single column or multiple columns. Display (or not) of the grouping bar matters not.

[rusticdog]

When using grouping, scrolling skips display of some emails.
Using either page down or clicking in the scroll bar, one too many emails are passed by, i.e. if X should become the top of the list, X+1 will instead be at the top, skipping X.
This does not happen unless grouping, by single column or multiple columns. Display (or not) of the grouping bar matters not.

Been on our list for a while this one, cannot recall if it's a fault with what we're doing, or the makers of the grid software. We'll hopefully get to it sooner rather than later though.