what I have in mind is, that XMP mode usually not caused the vcrun..dll issue. Would then more another unspecific ..0005 error. As the old posts mention, it is often a GPU thing ( these 6800xt we had since a long time under suspection ). It was interessting to read, that a user reported also a relation to the xmp mode. On other side it is realy interessting that MSFS bring issues with xmp mode on top.
I fear DX12 will not fix these issue, but let us hope for the affected users.