Activating running instance on Wayland doesn't work

1. Open NeoChat from Kickoff
2. Move another window to the front
3. Open NeoChat again from Kickoff

The NeoChat taskbar icon becomes orange, but the window is not activated.

kwin prints kwin_core: Refusing to activate KWin::XdgToplevelClient(0x559eba4738e0, surface=KWaylandServer::SurfaceInterface(0x559eba533930), caption="NeoChat") (provided token: "kwin-20" , current token: "null" )