Let's unpack this then, shall we?
First you start off saying that you are running the transmission daemon to do the actual downloading. So everything important happens server-side, correct? This makes opening and closing applications client-side an annoyance and not something destructive.
When I speak of a native application I mean an executable directly run on the target OS (Windows in your case.) as opposed to an emulated client or a Web-UI. When you click on a torrent link in the browser, it, when configured to do so, starts a new application. Period. When you click on a torrent in Windows Explorer, Windows, when configured to do so, starts a new application. Period.
This application could either be the QT-client itself or a helper application that checks if there already is a running client and hands the torrent link off to that. This could even be the same executable with a special internal execution path. And in this case it still yields the same loading of the application and closing it when the torrent is handed off to the already running client.
Let me explicitly state that I don't know the transmission QT-client and give you something to chase after. Are there any hints of a separate helper application .exe or .dll or even .bat file that could to be referred to in Firefox? Did you use an add-on in Firefox to provide similar functionality? Was the upgrade of the transmission QT-client the only variable? Are you sure the correct executable of the new version is started? Have you tried disabling the firewall? Have you tried reverting to the last known working version?
Though possible, I can hardly believe that implemented helper code would be removed if it was working correctly before. If the new version uses a newer version of the QT-platform the problem, also very unlikely, could lie there.
Happy Hunting!
BogusByte wrote: Wed Apr 14, 2021 6:46 pm
...and thanks for flipping me off in a gentle but arrogant way with irrelevant and non constructive info :/
Tip: dont post unless you got someting that actualy helps...
Flipping off, no, arrogant, perhaps. But still trying to help after a rude reply. And check some of my other posts before ...