Originally Posted by
soitgoes
Isn't yellow used for non-electronically-signed BPs (not required for paper boarding passes issued by kiosks or airline agents) and green for electronically-signed BPs (required for online checkin and mobile boarding pases)?
Thank you, if true, this could be it.
Mine was a mobile BP on my phone. Her's was a BP issued (on paper) and checked-in at the counter.