I'm actually using uMatrix, but I think Switchboard has the same code here and in this case it shares the same problem. Unfortunately developer @gorhill shut the door for reporting any bugs for his project and I have no choice, but report the problem here.

The problem is with treating global scope in rules. I have to keep both lines:
imdb.com ia.media-imdb.com script allow
imdb.com v2.sg.media-imdb.com script allow
And I can't use just one line instead:
imdb.com *.media-imdb.com script allow

Why is that? Can you please check and, if it's correct, fix it?

Thank you
P.S. I hope @gorhill will follow...