The airline said her bag was lost, but her tracker said otherwise. So she flew to get it
https://edition.cnn.com/travel/article/airtag-lost-luggage-flight/index.html
It's one of the reasons why I don't
want to check baggage when boarding an airplane. If the baggage is lost, it must be difficult to track where it acutually is. Especially when it's not recorded, it's nearly impossible to trace it.
This issue should be solved by putting airtag into the baggage.
But, in the airports, there are many restricted areas where ordinary passengers cannot reach. So, in some cases, it's difficult to find it, if it's placed in such areas.