The previously experienced issue whereby Wazapp stopped displaying / recognising "last seen / online" seems to have become permanent. In the past, it was always temporary and could be dealt with by uninstalling and reinstalling, however that no longer works. Also, the client appears unable to receive new messages or detect if a message has been delivered to the recipient's phone (I've tested it with a friend), only informing you if it's been delivered to the server. This is on 0.26.4 .... hope the new release is coming soon and fixes these bugs