Hi there,
Only the build file has been attached here. You’ll need to combine all into a zip file unfortunately as I don’t think multiple attachments is supported.
Edit: And please attach the RSP files for the compilation unit where the /Zchar8_t is not being added in (without the VCToolChain.cs modification).
As I mentioned before, you should be seeing the /Zc:chart8_t should be propagated through via the AdditionalCompilerArugments.
You should also not have to specify std:c++20. As I have stated before, this is the default; I suspect there is something within the Target file that’s driving this.
Julian