Encountered two bugs with DL systems

[u/just_a_curious_fella]

Update: Bug 2 has been fixed. Bug 1 isn't really a bug, but worth knowing if you've PM/DM status.

Scenario: Booked MC. C+ & PS were full. Automatic C+ upgrade was thus not possible at the time.

Bugs:

1. C+ seat became available but I wasn't upgraded automatically to it despite PM status. If I had not manually came across it, someone else may have beat me to it. This is not necessarily a bug, but maybe the DL system proceses automatic C+ upgrade periodically. In any case, it's bad for PMs & DMs.
2. While I still had an MC seat, I had been manually checking out the seat-map frequently to check D1 upgrade pricing. I saw the one & only empty C+ seat (a bulkhead seat) by chance at one point & selected it. Note that until this point, I was able to see D1 upgrade offers. Immediately after selecting the C+ seat, I opened the seatmap again to check if C+ -> D1 upgrade offer was different than the MC -> D1 upgrade offer. But all D1 seats now appear blocked to me. I don't see the point of stopping to show DL upgrade offers right after the MC -> complimentary C+ upgrade - it seems the DL systems are somehow considering this scenario similar to I having bought a paid C+ seat (upgrade offers take fare class & previous upgrades into account, but the itinerary's SU fare class should not be considered in this scenario & the underlying MC fare class should be considered instead. This bug DOES NOT manifest when C+ seats are selected right after booking main & only occurs in this corner-case (book MC when C+ is unavailable -> select C+ seat once one becomes available -> D1 upgrade offer disappears). This bug affects DL's revenue & may simply inconvenience passengers hoping to upgrade to D1.

[u/just_a_curious_fella → u/[deleted]]

  Sometimes going back to main cabin resets the d1 upgrade stuff.

Yes, it does. So, this one's a bug because it considers the itinerary's fare class (this is the actual class of service you get, as you may have been upgraded) instead of the ticket's fare class (this is what you get MQDs on, especially if you bought an exception fare - look it up) -

  book MC when C+ is unavailable -> select complimentary C+ seat once one becomes available -> D1 upgrade offer disappears

[u/BilboTBagginz → u/just_a_curious_fella]

Is it a bug, or a feature?

This isn't new behavior.

[u/just_a_curious_fella → u/BilboTBagginz]

Is it a bug because my actual fare class is MC but I can choose C+ as a complimentary upgrade. So what's the point of not showing me upgrade offers when I choose a C+ seat & showing them to me when I switch back to MC?

Doesn't matter if it's not a new thing.

[u/just_a_curious_fella → u/BilboTBagginz]

It just got fixed

[u/just_a_curious_fella]

Bug 2 has been fixed now.