I have a slur that can't be selected. I don't use a Mac, but noticed on one location the recommendation to make the score larger until you can select it. Well, here's how it appears (okay, you're makin' it hard, can't just copy/paste image. See first attachment).
When I enlarge the score, it vanishes (see attachment).
I've tried inserting a measure and copying a part at a time. The slur is gone, but next time I look, it's appeared in the new measure and nothing I've done so far seems to make it go away for good.
I need this piece soon, so would welcome any help you can offer. Email: email@example.com, please.