This bug, and closely related Osnap control bug have not been fixed in Rhino 7.8. The SelectionFilter bug is illustrated in the following screenshot. It happens every time I launch Rhino. (I always keep the SelectionFilter control and the Osnap control in the bottom-right corner.) The border between the Osnap control and the panels above it drifts downward every time I launch Rhino. Eventually, the Osnap control disappears. The drifting is less severe than a few years ago because I complained about it several times.
Here, I can repeat at least some of what you show - here, it does not happen if the order is reversed - at least is what it looks like - filters on top.