Update readme

README.md

@@ -41,6 +41,8 @@ For the latest version of DXUT for Direct3D 11, please visit the project site on
 
 * Starting with the July 2022 release, the ``bool forceSRGB`` parameter for DDSTextureLoader ``Ex`` functions is now a ``DDS_LOADER_FLAGS`` typed enum bitmask flag parameter. This may have a *breaking change* impact to client code. Replace ``true`` with ``DDS_LOADER_FORCE_SRGB`` and ``false`` with ``DDS_LOADER_DEFAULT``.
 
+* There are known codegen issues when mixing the library built with Visual C++ and the sample built with recent builds of clang/LLVM for Windows. Building both the library and the sample using the same complier avoids the issue.
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 ## Support
 
 For questions, consider using [Stack Overflow](https://stackoverflow.com/questions/tagged/dxut) with the *dxut* tag.