Since the last update we cannot compile winforms and winforms-designer anymore. In both cases the SDK version 6.0.100-rc.1.21379.2 cannot be found and cannot be downloaded. The latest we can find is 6.0.100-preview.6.21355.2.
"using System" is missing and the implicit using in csproj is missing as well causing thousands of compiler error.
Tried with VS2019 and 2022 and on clean dev machines.
What am I missing?