Save Taging destroys highres wav

[Udo-A]

I have wav files with 176.4 kHz sample rate. I can read tags, but when I save, even without changing anything, the file is destroyed (unplayable, corrupt). I use C#
TagLib.File tl= TagLib.File.Create(fn);
tl.Save();
It doesn't happen with all files, I couldn't find a requirement.