Mirek, I looked at it in debugger.
File: Path.cpp

bool FindFile::Search(const char *name) {
	pattern = GetFileName(name);
	path = NormalizePath(GetFileDirectory(name));
	Close();
	handle = FindFirstFileW(ToSystemCharsetW(name), data);
	if(handle == INVALID_HANDLE_VALUE)
		return false;   <-- returns here
	if(!PatternMatch(pattern, GetName()))
		return Next();
	return true;
}

name contains "\\\\1336data\\Constructor"

Victor