After years of seeing "DM/EMERALD xxxxxxxxxx" on my BP, I was surprised to see "CXDM xxxxxxxxx" on my BP in TPE last month. On the Lounge Invitation, where it usually says "DM/EMERALD" it said... nothing. Just the MPO Number.

Curious if anyone knows the reason why this happened... it only happened once - both all the BP's before and after (from TPE) have been in the standard format. This particular BP was issued at the gate after asking for a seat on an earlier flight.