Internal error at WaveTrack.cpp line 998

Greetings from France,
While changing speeds on some files I get the internal erro message as follows : “Erreur interne à WaveTrack.cpp ligne 998. Veuillez en informer l’équipe d’Audacity.”
I never get error messages usually and this is exceptional to me as a long time very happy user of Audacity.
Currently running Audacity 3.0.2 on Linux Mint 20.

Are you sure that you are running version 3.0.2? (look in “Help menu > About Audacity”)
That looks like an error from a much older version of Audacity. :confused: