Why is the plugin not signed?
2020-09-24 19:37:38.348 system_profiler[63498:2296415] Error loading /Library/CoreMediaIO/Plug-Ins/DAL/ManyCamVideoDeviceCMIO.plugin/Contents/MacOS/ManyCamVideoDeviceCMIO: dlopen(/Library/CoreMediaIO/Plug-Ins/DAL/ManyCamVideoDeviceCMIO.plugin/Contents/MacOS/ManyCamVideoDeviceCMIO, 0x0106): code signature in (/Library/CoreMediaIO/Plug-Ins/DAL/ManyCamVideoDeviceCMIO.plugin/Contents/MacOS/ManyCamVideoDeviceCMIO) not valid for use in process: mapping process is a platform binary, but mapped file is not