I was able to reproduce the bug using both an iPhone and an Android phone. The Keychat IDs on both devices were already connected as chat friends. The Android phone displayed a QR code, which the iPhone scanned to add the friend. On the iPhone, a screen appeared with a button labeled “Resent signal session.” After tapping it, the original chat room showed the error message “signal session is null.” We're currently working on a fix for this issue. Did you experience the same problem?
