My applications had been running fine and I was doing various code changes and NuGet packages… then I was hit with this strange error, that did not even throw out a proper exception.

Does anyone have experience troubleshooting this or how even to debug it?

Windows 11
C# version 12
.NET 8

The application starts up “fine”, only when I try to hit it with a WebSocket connection. I’ve only found 2 old posts on StackOverflow but none of them have any solution to it.

onecorenetnetprofilesservicesrcnspdllnamespaceserviceprovider.cpp(550)nlansp_c.dll!00007FFFA151D93D: (caller: 00007FFFD6B3ACF6) LogHr(1) tid(3d64) 8007277C No such service is known. The service cannot be found in the specified name space.
onecoreprintscanappxpackagingsigningsrcappxsip.cpp(612)AppxSip.dll!00007FFF9B4A1930: (caller: 00007FFFD47D42B2) ReturnHr(1) tid(2df4) 80070032 The request is not supported.
onecoreprintscanappxpackagingsigningsrcappxbundlesip.cpp(693)AppxSip.dll!00007FFF9B4A140C: (caller: 00007FFFD47D42B2) ReturnHr(2) tid(2df4) 80070032 The request is not supported.
onecoreprintscanappxpackagingsigningsrceappxsip.cpp(461)AppxSip.dll!00007FFF9B4B0E7F: (caller: 00007FFF9B4B04C7) ReturnHr(3) tid(2df4) 80070032 The request is not supported.
onecoreprintscanappxpackagingsigningsrceappxbundlesip.cpp(450)AppxSip.dll!00007FFF9B4AFD00: (caller: 00007FFF9B4AF426) ReturnHr(4) tid(2df4) 80070032 The request is not supported.
onecoreprintscanappxpackagingsigningsrcappxsip.cpp(612)AppxSip.dll!00007FFF9B4A1930: (caller: 00007FFFD47D42B2) ReturnHr(5) tid(2df4) 80070032 The request is not supported.
onecoreprintscanappxpackagingsigningsrcappxbundlesip.cpp(693)AppxSip.dll!00007FFF9B4A140C: (caller: 00007FFFD47D42B2) ReturnHr(6) tid(2df4) 80070032 The request is not supported.
onecoreprintscanappxpackagingsigningsrceappxsip.cpp(461)AppxSip.dll!00007FFF9B4B0E7F: (caller: 00007FFF9B4B04C7) ReturnHr(7) tid(2df4) 80070032 The request is not supported.
onecoreprintscanappxpackagingsigningsrceappxbundlesip.cpp(450)AppxSip.dll!00007FFF9B4AFD00: (caller: 00007FFF9B4AF426) ReturnHr(8) tid(2df4) 80070032 The request is not supported.
onecoreprintscanappxpackagingsigningsrcappxsip.cpp(612)AppxSip.dll!00007FFF9B4A1930: (caller: 00007FFFD47D42B2) ReturnHr(9) tid(2df4) 80070032 The request is not supported.
onecoreprintscanappxpackagingsigningsrcappxbundlesip.cpp(693)AppxSip.dll!00007FFF9B4A140C: (caller: 00007FFFD47D42B2) ReturnHr(10) tid(2df4) 80070032 The request is not supported.
onecoreprintscanappxpackagingsigningsrceappxsip.cpp(461)AppxSip.dll!00007FFF9B4B0E7F: (caller: 00007FFF9B4B04C7) ReturnHr(11) tid(2df4) 80070032 The request is not supported.
onecoreprintscanappxpackagingsigningsrceappxbundlesip.cpp(450)AppxSip.dll!00007FFF9B4AFD00: (caller: 00007FFF9B4AF426) ReturnHr(12) tid(2df4) 80070032 The request is not supported.