I also get this when compiling VB.net UWP App in Visual Studio 2019. Windows 10 1909 build 18363.836 x64.
onecoreuap\windows\wgi\winrt\display\displaycommon.cpp(411)\Windows.Graphics.dll!00007FFB9B0604B0: (caller: 00007FFB9B0601F5) ReturnHr(1) tid(47b4) 80070490 Element not found.
onecoreuap\windows\wgi\winrt\display\displaycommon.cpp(411)\Windows.Graphics.dll!00007FFB9B0604B0: (caller: 00007FFB9B06017A) ReturnHr(2) tid(47b4) 80070490 Element not found.
onecoreuap\windows\wgi\winrt\display\displaycommon.cpp(411)\Windows.Graphics.dll!00007FFB9B0604B0: (caller: 00007FFB9B0601F5) ReturnHr(3) tid(47b4) 80070490 Element not found.
onecoreuap\windows\wgi\winrt\display\displaycommon.cpp(411)\Windows.Graphics.dll!00007FFB9B0604B0: (caller: 00007FFB9B0601F5) ReturnHr(4) tid(47b4) 80070490 Element not found.
onecoreuap\windows\wgi\winrt\display\displaycommon.cpp(411)\Windows.Graphics.dll!00007FFB9B0604B0: (caller: 00007FFB9B0601F5) ReturnHr(5) tid(47b4) 80070490 Element not found.
onecoreuap\windows\wgi\winrt\display\displaycommon.cpp(411)\Windows.Graphics.dll!00007FFB9B0604B0: (caller: 00007FFB9B0601F5) ReturnHr(6) tid(47b4) 80070490 Element not found.