Magnet link is a kind of torrent without the need of downloading a torrent file (you just add link and it starts downloading). I tried to use journalctl and this seems to be where the problem is:
Thg 4 24 19:13:32 DINGO transmission-gt[3579]: g_object_set_data: assertion 'G_IS_OBJECT (object)' failed Thg 4 24 19:13:32 DINGO transmission-gt[3579]: gdk_window_get_window_type: assertion 'GDK_IS_WINDOW (window)' failed Thg 4 24 19:13:32 DINGO transmission-gt[3579]: _gtk_widget_captured_event: assertion 'WIDGET_REALIZED_FOR_EVENT (widget, event)' failed Thg 4 24 19:13:32 DINGO transmission-gt[3579]: _gtk_widget_captured_event: assertion 'WIDGET_REALIZED_FOR_EVENT (widget, event)' failed Thg 4 24 19:13:32 DINGO transmission-gt[3579]: _gtk_widget_captured_event: assertion 'WIDGET_REALIZED_FOR_EVENT (widget, event)' failed -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to transmission in Ubuntu. https://bugs.launchpad.net/bugs/1825651 Title: Transmission freezes when adding second magnet in Ubuntu 19.04 Status in transmission package in Ubuntu: Incomplete Bug description: Step to reproduce: 1. Open browser 2. Click a magnet link 3. Choose to use transmission 4. Choose folder 5. OK 6. Open another magnet link 7. Choose folder --> It freezes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/transmission/+bug/1825651/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp