Pressing the 'backspace' key (which is commonly used on a Windows operating system to delete text to the left of the cursor's current position), results in my cursor jumping a couple of lines back (as opposed to the previous line - assuming in this case that the cursor's current position is at the start of the line).

In addition, the content to the right of my cursor is dragged along (i.e. jumps) with the cursor!

Refer to the appropriately named (before/after pressing backspace) images attached to this issue for details. The red box in each indicates the position of the cursor. (Note the jumping anchor macro too!)