The audio waves don’t appear on the timeline

Windows

What is your Shotcut version (see Help > About Shotcut)? Is it 32-bit?
Version 20.10.31

Can you repeat the problem? If so, what are the steps?
(Please be specific and use the names as seen in Shotcut, preferably English. Include a screenshot or screen recording if you can. Also, you can attach logs from either View > Application Log or right-click a job and choose View Log.)

The audio waves don’t appear on the timeline … I’ve used different videos, but the problem continues … I’ve uninstalled and reinstalled …
This problem arose after installing the latest version …

Is Show Audio Waveforms checked?

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After checking what @sauron wrote, I need to see the log as mentioned in the post template. You can also try changing Settings > Display Method to see if makes a difference.

A opção Mostrar formas de onda de áudio está marcada sim… Também não encontrei a opção “Método de exibição” dentro do menu de configurações

Sorry but I do not understand that language.
You might need to reboot before you uninstall and reinstall because sometimes some of the program files are locked and prevent an update.