Flac conversion bug in c8.5


I tried to convert my 24bit/44khz wav files (recorded in cubase) to convert to flac file.

The process:
Right click in the file in the pool and convert file selected. (replace in the pool option selected)

After that I always got a click and pops in the file.

The situation is like this in every case.

Thank you.

I never export from Cubase in anything other than wav. I never could load anything other than wav into C8. I use 3rd party file conversion software to work around all this. Specifically: ffmpeg.