message: Fix STL loader crashing on missing files
diff: @@ -194,7 +194,7 @@ asset::IAsset* CSTLMeshFileLoader::loadAsset(io::IReadFile* _file, const asset::
  bool CSTLMeshFileLoader::isALoadableFileFormat(io::IReadFile* _file) const
  {
  - if (_file->getSize() <= 6u)
  + if (!_file || _file->getSize() <= 6u)
  return false;
  char header[6];
  