The today updating 'marathon', full build install of a minor minor update (v1.2.0.0 to v1.2.0.1) and furthermore an update to a major minor v1.2.1.0 via the updater ended in a malfunction of the configurator which was working fine after the full install of build v1.2.0.1.
OS Windows 10 1909, P3Dv4.5 HF3 in use.