One of my very good friends lives in OH. I made sure to send her a STD since she'd have to travel. She booked her flight a few months ago. And then her invite never arrived! Another of our other friends contacted me and asked if Karen will still invited. I said of course! I guess Karen thought I decided not to invite her?! Ugh. I feel terrible. I emailed her this morning. Apparently she just moved across the hall into another apartment. All of her mail is being forwarded, but this still didn't arrive.
We also sent an invite to FI's step-sister's mother. FMIL gave me the wrong adddress. Not only did that invite not arrive, but it never came back to us. And she lives only 30 minutes away from us in the same state. I guess it's just roaming around NY somewhere.