Hi,.
Just upgraded to 8.0.4 (from 8.0.3) and I have the above error when trying to open some vision windows in designer. Same problem just opening project as a client.
14:34:52.285 [Designer-Startup] INFO Perspective.ViewWorkspace - Initializing JxBrowser Context with disk cache.
02:34:52 SEVERE: [0929/143452.318:ERROR:gpu_process_transport_factory.cc(1018)] Lost UI shared context.
14:34:52.397 [Designer-Startup] INFO Perspective.SessionProps - Session props debug url: