Cannot add Qt 6.3.0 to the VS addin

vcvars: C:\Program Files\Microsoft Visual Studio\2022\Professional\VC\Auxiliary\Build\vcvars64.bat
cl: C:\Program Files\Microsoft Visual Studio\2022\Professional\VC\Tools\MSVC\14.32.31326\bin\HostX64\x64\cl.exe
--- qmake(17192): started C:\QT\6.3.0\MSVC2019_64\bin\qmake.exe
--- qmake: Working Directory: C:\Users\radu.coriu\AppData\Local\Temp\d3stllf5.yy5
--- qmake: Arguments: QMAKE_INCDIR_QT=$(QTDIR)\include QMAKE_LIBDIR=$(QTDIR)\lib QMAKE_MOC=$(QTDIR)\bin\moc.exe QMAKE_QMAKE=$(QTDIR)\bin\qmake.exe -o "d3stllf5.yy5.vcxproj" -tp vc -Wnone "d3stllf5.yy5.pro"
Could not find qmake spec 'win32-msvc'.
Error processing project file: d3stllf5.yy5.pro
--- qmake(17192): exit code 3 (82.15 msecs)
Error reading VS project settings
Stacktrace:
 at QtVsTools.Core.VersionInformation..ctor(String qtDirIn)
 at QtVsTools.Core.VersionInformation.Get(String qtDir)
 at QtVsTools.Options.QtVersionsPage.SaveSettingsToStorage() in C:\dev\source\qtlabs\vstools\QtVsTools.Package\Options\QtVersionsPage.cs:line 117
Cannot delete a subkey tree because the subkey does not exist.
Stacktrace:
 at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
 at Microsoft.Win32.RegistryKey.DeleteSubKey(String subkey, Boolean throwOnMissingSubKey)
 at QtVsTools.Core.QtVersionManager.RemoveVersion(String versionName)
 at QtVsTools.Options.QtVersionsPage.<SaveSettingsToStorage>g__RemoveVersion|10_0(String versionName) in C:\dev\source\qtlabs\vstools\QtVsTools.Package\Options\QtVersionsPage.cs:line 95

Could not find qmake spec 'win32-msvc'.