If I paste audio filter : “Mute” when no clip in Timeline is selected, then all sounds are gone.
What is your operating system?
Windows 10 Home
What is your Shotcut version (see Help > About Shotcut)? Is it 32-bit?
20.07.xx 64-bit
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.)
If nothing is selected, you don’t have access to the filter’s list. That means you applied the Mute filter to the Output box. Or to an entire track. You’ll see a funnel icon in those boxes when filters are applied there.
Simply select the box with the funnel icon and delete the filter.
Oh and please, next time explain you problem in your post, not in the tittle