Given the urgency of the request makes me think they didn't know.

I don't think we've ever gotten a reliable answer on if they knew or didn't though

Edit: E.g they've never admitted to a successful use in the region prior to that event to indicate it was actually on or attempted before.

Edit: I think they were also told it'd work in Ukraine, but maybe unknown to them that didn't include Russia controlled areas. I can see the mistake happening