Didn't have a problem before 50.0 installed not long ago.
Using Deluge as a torrent client. Opera has has worked fine with it until now.
Clicking on a magnet: link brings up the dialogue asking "Do you want to open Deluge to handle this link?" with the usual "Always open magnet: links" checkbox beneath it.
Checking the box used to work. Now it does not. I get asked again every. single. time.
Removing and reinstalling Opera, completely deleting Opera's settings profile in the process. NO existing settings or anything about/from the profile were saved.
I have also checked for permission issues within the Opera appdata folder both before and after removal/reinstallation. Nothing is unusual.
It simply refuses to save this one single setting, which it never had a problem with before.