Thank you for answering Martin. I am using Cubase Pro 9.5.50 in Windows 10. I have attached two more screenshots. In Screenshot 1, I have just performed “Select all from Cursor to end.” The cursor is at 64.4.3.64. The first note of the selection starts at 66.2.1.73. Then, I did Ctrl-L to move the selection to the Cursor. Screenshot 2 shows the result. The selection has only moved to 66.2.1.10 (from 66.2.1.73).
I have never used quantize or nudge (and, to my knowledge, I have never touched those settings). It seems to me that the “move selection to Cursor” function is only moving the selection by some “nudge” amount on my system. Perhaps I have some incorrect settings. Perhaps it is a bug in the code.
I am grateful for any help.