Hi Vincent, in isStdioDescriptorATTY at line 898 there is no guard to check if pGetFileInformationByHandleEx has already been fetched. The code needs to be something like

static pfnGetFileInformationByHandleEx pGetFileInformationByHandleEx = NULL;

if (! pGetFileInformationByHandleEx) {
	pGetFileInformationByHandleEx = (pfnGetFileInformationByHandleEx)
	if (pGetFileInformationByHandleEx == NULL)  return -2;

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