Hello everyone, thanks for your replies
(By the way I use Windows 10)
I have tried renaming with .wav, changed the save folder, or put the file next to the vcv project, but nothing works.
I use Polyrec64 and I was able to record successfully, then I put the Wav track that I wanted on Complex Simpler and it works, the loop is not removed when I exit VCV. it’s a few extra steps but it works for me.