Solution

Browser: Chrome 78.0.3904 Windows
User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36
Extension: userjs-chrome 8.57.2

ı am using extansion.ı cant download any video. (bugs look like that ı have attached.)Ekran Alıntısı.PNG

Hello, Could you please send a few links you can't download. We will check it out.

https://www.instagram.com/p/B4Ts6xvA13_/
https://www.instagram.com/p/B53EdODgkVT/
https://www.instagram.com/p/B5qHrvug1V9/
https://www.instagram.com/p/B4ur6PNB5QI/ these are just for example ı cant download any video from instagram

The video is downloading, try reinstalling the extension and clearing the cache and cookies in the browser
Service d'assistance aux clients par UserEcho
Hello, Could you please send a few links you can't download. We will check it out.