This continues to be a major problem for reservations with partner airlines in the record.

Viewing a reservation with changes highlighted in red, can result in flight segments being cancelled, if you accept changes online.

This just happened to me with reward tickets on DL and KE.

It has happened in the past with a domestic only reward on DL, and reward travel on QF.

THIS REALLY IS A MAJOR PROBLEM. Call the CO QF/EVA Partner desk in Salt Lake and ask those folks how bad it is. People are having reservations deleted (and cancelled). Sometimes it only gets cancelled out of the CO system, but maybe I have called immediately before it had a chance to sync to the partner's systems.

TO ALL: Under no circumstances should you accept changes online. Rather call the CO tech support number for SkyTeam flights and CO's QF/EVA desk for any tickets with those airlines.