Both builts are working - so it is 24504 I suppose …
The PR24504 enables a streambuffer and maybe the small xml-file containing information of the E2-Box is not returned correctly due to:
if (ShouldUseStreamBuffer(url))
{ 
   m_pBuffer = std::make_unique<CFileStreamBuffer>(0);
   m_pBuffer->Attach(m_pFile.get()); 
}
The function
bool CFile::ShouldUseStreamBuffer(const CURL& url) may return true due to:
if (URIUtils::IsNetworkFilesystem(url.Get()))
return true;