I've noticed several times where Copa's web site shows no saver availability but it's Star Alliance partners show phantom space for the same flight. Not just one, but many - Air Canada, ANA, Asiana, Turkish, etc. I then call Air Canada to confirm before booking and the agent says it's not available. Is this a common problem with Copa not synching it's availability with its partners in a timely manner? An example is 3/2/24 PTY-EZE in business class. Partners all show availability, but Copa's web site shows only standard availability and Air Canada confirmed it was phantom space on their web site.