sound dissappers when mixing multiple files

Hi…

I’ve imported several files to mix end-beginning of each track as it would be a radio show.
But now the first second dissappears from the track.
What to do?

It all worked well before.

Phil

If your tracks are mp3 format this may be relevant … https://forum.audacityteam.org/t/missing-beginning-of-mp3-files/11507/1

Ensure that you are using the latest version of Audacity - currently 1.3.12