"Copy Frame Link" hidden in indexed MP4

I’m playing an MP4 file that is indexed, not imported. I’ve stopped at the frame with which I want to link. When I open the context menu (right click), it shows only the option “Copy”, and the option is disabled:
Screenshot 2023-11-20 at 1.16.15 PM

If I go to the edit menu, “Copy Frame Link” is not present:

But, “Copy Frame Link” does appear if I hold CMD+SHIFT:

If I use the search feature in the Help menu, the option also appears:

Why is this happening? Frame links do work for this file.

I think I’ve figured out what’s happening. It might be that the quicktime player is interfering. If I right click in the margins (the black space on the sides or top and bottom), the standard context menu is available.

The contextual menu is unfortunately handled by macOS in case of recognized live text but the action menu is always accessible and contains the same commands.