I have Win10 with Audacity v3. I can record everything with v3, playback everything with v3 using a USB tape drive, but when I export as Mp3 or WAV or whatever the file will not playback using VLC, Groove, Win Media Player or any other app. I can however, import the file back into Audacity and it plays perfectly. Any advice anyone?
I cannot reproduce this on W10 any WAV or MP3 I export from Audacity 3.x will readily play in all the media players that I have.
It could be this issue:
Why have I lost sound after connecting a USB device on Windows?