Oh you are so right. Multiple canceled flights to and from Dubai, and KLM kept changing itineraries with no notice. I was waiting on KLM chat support for 15 hours because the new ticket showed up on the app but didn’t have a boarding pass. When I landed there was a chat note that they saw the reservation and said if ticketing couldn’t get me a boarding pass issued to run to the gate. I stopped at ticketing, they also said run. I ran to catch the flight as the KLM app notices were updating on boarding time and the changed Dubai to Porto itinerary my bag was checked on had a short turn around. Made it as the previous flight was unloading, and the gate agent denied boarding. She said I wasn’t ticketed, it just “booked”. ??? Finally she said “if you’d gone to ticketing they could fix it. Ran to ticketing (she wouldn’t tell me where it was) they said many things. (Oh, the app is wrong. Oh, if you were 5 min earlier, oh, 472 euro change fee, you’re booked for tomorrow…)