The best solution I found so far was to downgrade the Transmission client back to version 1.76 using the NMT CSI. Now everything works perfectly, thought the new feature of 1.9X are missing.
Just like every other piece of software: upgrade doesn't mean you're getting a better product. Sometime it means you're part of the testing of the newer version. Nonetheless, I'd be happy to install the next version when it comes out.