Does anybody else have this problem with the advanced bookmarklet?

I was just looking into several questions that have been asked and answered about the advanced bookmarklet, and since my problem with it has not been mentioned [or at least I found no mention of it], I'm not sure if anyone else is having this problem! So here's the problem:

When I try to add an item to multiple twines, only the 1st twine that I select receives the item, although the bookmarklet says that multiple twines have actually been selected! I've had this problem since I started using twine. The non-advanced bookmarklet works fine for me.

So am I the only one?