A new data update for iCluster has just been released which updates the callsign database and includes some other amendments.
Please be patient regarding the display issue as I am still working on that update. Maybe iOS 8.1 may fix this issue which will be released on Monday (although I doubt as the iOS 8.1 beta doesn’t fix it).
Until either my or an iOS 8 update is available, there is a temporary solution: you can reveal the invisible entries by just selecting the call entry in the details list (either on spotter or heard) which opens the QRZ.com page but once you go back from that page, the hidden entries will be visible. You don’t need to wait until the QRZ.com page is loaded, just tap on it and go back. Sorry for the inconvenience.
Best regards and vy 73,