EDIT: read the next comment and please ignore this one. It was written under the assumption that you had pasted https://github.com/ngosang/trackerslist/blob/master/trackers_all.txt into the trackers list as if it were a tracker URL. Then I watched the video and understood what you really meant.

5. Paste this URL at the bottom text box: https://github.com/ngosang/trackerslist/blob/master/trackers_all.txt

The "add new tracker" dialog is for adding actual tracker URLs which qBittorrent will attempt to announce to. You're not supposed to paste a URL to a text file containing tracker URLS there; you're supposed to paste the actual tracker URLs:

udp://tracker.coppersurfer.tk:6969/announce
udp://tracker.leechers-paradise.org:6969/announce
... etc ...

Support for URLs containing lists of trackers (and possibly auto-update of such lists) has already been requested, I believe. EDIT: not relevant for this situation; it was referring to Tools->Preferences->Bittorrent->Automatically add these trackers to new downloads

I don't know off the top of my head how much validation is performed, but technically https://github.com/ngosang/trackerslist/blob/master/trackers_all.txt is a valid URL, and since tracker URLs can be arbitrary valid URLs (although typically they are are of the form {http(s),udp}://tracker_hostname:port/announce), there is no reason why it should be rejected.

One thing is strange though: this should not result in a freeze anyway, either with an HDD or SSD (and the type of storage medium really should not matter here). qBittorrent should simply try to announce to the URL, and if it fails (which would be the case), just label it Not working.

Ok I just watched the video. Looks like you're trying to use the "utorrent compatible list" function. It did not work because https://github.com/ngosang/trackerslist/blob/master/trackers_all.txt is a link to an HTML page. As you can see in the video, each HTML line was taken to be a URL, which will obviously not work. You can also see that no validation is performed, which is certainly not ideal. Use https://raw.githubusercontent.com/ngosang/trackerslist/master/trackers_all.txt instead (which is the URL to the raw text file), and it will work.

I will consider this one a feature request for the URL validation.

Ok I just watched the video. Looks like you're trying to use the "utorrent compatible list" function. It did not work because https://github.com/ngosang/trackerslist/blob/master/trackers_all.txt is a link to an HTML page. As you can see in the video, each HTML line was taken to be a URL, which will obviously not work. You can also see that no validation is performed, which is certainly not ideal. Use https://raw.githubusercontent.com/ngosang/trackerslist/master/trackers_all.txt instead (which is the URL to the raw text file), and it will work.

I will consider this one a feature request for the URL validation.

@FranciscoPombal

Of course, I know why it doesn't work. The reason why I'm filing this issue is purely because of that there's no check in place. It should inform me that the URL I've put, isn't valid and therefore won't be pasted (which caused a permanent freeze, which led to the fact that I had to re-install and remove the torrent file). That's why I was filing this issue as well; so an update will contain that an URL validation is made when inputting an invalid URL.