Yes, I had noticed that SSC sometimes
seems erratic/inconsistent in its file management interface.
I had never thought to mention it before now, because my requirements for SSC do not currently include a mandatory:
"Must have a reliable file management interface replicating relevant Windows Explorer functionality".
The current SSC behaviour in this regard is not a showstopper for me, and I am accustomed to switching to the relevant screenshot directory in my File Explorer (xplorer²), for all file management-related tasks (e.g., deleting, renaming). That is a workaround.
So for me, the priority to fix this would probably be "C" - i.e., "Nice-to have".
(Where "A" would be "Mandatory", and "B" would be "Highly desirable".)