We are experiencing serious issues with the Geocaching API. Project-GC can no longer fetch information about geocaches and can therefore not update its data properly. We have sent a bug report to Geocaching HQ but our guess is that we'll see this issue for at least 12 hours. Besides the fact that Project-GC will hold older data than usual it will affect building GPX files if the user choses to refresh geocache data together with the build.