kmail only shows the header of the encrypted message. Instead of the content of the message, it only shows a white area. SOFTWARE/OS VERSIONS Linux/KDE Plasma: 5.4.61-1-lts / 5.19.4 (available in About System) KDE Plasma Version: KDE Frameworks Version: 5.73.0 Qt Version: 5.15.0 Kmail: 5.15.0 (20.08.0)
Messages when I start kmail in a terminal: Cannot initialize model with data QJsonObject() . missing: QJsonValue(string, "urls") qt.qpa.xcb: QXcbConnection: XCB error: 8 (BadMatch), sequence: 2351, resource id: 104857907, major code: 130 (Unknown), minor code: 3 qt.qpa.xcb: QXcbConnection: XCB error: 8 (BadMatch), sequence: 2357, resource id: 104857907, major code: 130 (Unknown), minor code: 3 ...