Starting up to a few weeks ago, when I right click the program's green icon and choose to quit, it fakes quitting but doesn't actually quit.
That is, the green button goes away, making it impossible to continue using the program, but Task Manager nonetheless shows uTorrent.exe still runs.
Even more so, when you re-launch uTorrentPortable.exe nothing happens, no UI pops up. This is actually what triggered me to investigate Task Manager in the first place.
I understand it might be a bug (hopefully not scam) by the original program itself, but if so, can you please bypass it and force it to close?
If you handle it correctly, those kind of incidents are exactly why people should prefer to use PortableApps over the original versions that don't always care for portability and in this case may even resort to trickery.