[KDE] KGet is Broken

[kyonides]

This is really weird. Till last night or so, KGet was working normally but today it only remains alive as a process. No GUI available, not even as an applet or system tray icon.
I tried running it from the terminal window, using Konsole, and the only thing I noticed is that it printed some normal info:

Verifying Metalink/HTTP Status
Mime Type: "text/html"
No Metalink HTTP response found
QWidget::insertAction: Attempt to insert null action
QWidget::insertAction: Attempt to insert null action
"My Downloads"
"My Downloads"
"My Downloads"
"My Downloads"
Recalculate limits? true
"My Downloads"
"My Downloads"
"My Downloads"
"My Downloads"
​

Then it started repeating the same question over and over again.

Recalculate limits? false

Noble Numbat is up-to-date and the only custom repositories I've added are WineHQ, Opera, Ruby 2.7, VLC non-snap version. and cappelikan's Mainline (kernels).
Anyway, there's a chance that the latest gir related packages might have broken it if they eve were used by KGet. Otherwise, I don't have a clue on what's happening here. :S

I even deleted .config/kget and .local/share/kget to no avail.