lazyabeats agreed, I think a global panic button makes. My only hesitation with that was that it could potentially hide bugs, if a Mela user gets stuck notes they may not report the issue. I will add the global panic button, but if you are getting stuck notes and can reproduce it with a Mela preset or a specific AUM session would love to get a copy of the files and investigate it. I've put a lot of effort into eliminating any edge cases that cause stuck notes, but there could still be bugs. And I would love to find them and fix them. Note that, sometimes other plug-ins, e.g. synth instruments aren't handling MIDI notes properly and they could be causing stuck notes.
Nikolozi: Great, I'll try to catch these stuck notes and post it later
The improvement shipped in the 6.0 release.