Yup this has happened to me twice now and I’ve posted in this thread
As you mention, it seems to be completely random. Two days ago it didn’t record, yesterday it did and today it didn’t (and then did after I re-tried). I’ve taken screenshots. The fact that Blizzard has not even replied or acknowledged this given there is multiple posts and cases of this is extremely frustrating. This is a pretty big bug imo. Pushing is a big part of the game no? Even just a simple ‘we’re looking into this’ would be better than nothing.
EU server.