Sample editor snap function

This never works for me:

The Snap function helps you to find exact positions when editing in the Sample Editor by restricting horizontal movement and positioning to certain grid positions. You turn Snap on or off by clicking the Snap button in the Sample Editor toolbar.

The Sample Editor Snap function is independent of the Snap setting in the Project window toolbar or other editors. It has no effect outside the Sample Editor.

What are the “certain grid positions”?

Bars Beats etc. Is your timeline set to bars and beats?

Yes I am set to Bars and Beats and the snap doesn’t seem to do anything in Cubase 8.5. The manual says “Allows you to restrict horizontal movement and positioning to certain positions.” for snap in Sample Editor.