Weird Midi Note Problem in Ableton

[Leisure Club]

Hey guys,
so i just started up a new track, and after like an hour i realized that sound was playing even when the midi note has stopped, and the only way to stop the sound is by stopping the track. Its like this weird sustain that goes on and on. This is a problem I've never encountered before ever. I know its not reverb/etc because i don't have any reverb plugins active the sustain is level and does not decay.

The strange thing is almost EVERY midi track does this - even in different vsts. There's only one that doesn't sustain (Nexus). Also, if i take 1/8th off the last midi note of the clip, it doesn't do the sustain thing.
Its really annoying and i have to constantly automate the clip on/off. Anyone knows why this happens and how to fix it?

Thanks!

[Patch]

You've not got general midi enabled in your laptop have you???

[Tarekith]

Make sure the end of the midi notes is not outside of the end of your loop brace.

[Leisure Club]

Patch; how do i know if i have general midi enabled? But probably not, unless i accidentally clicked on something. Tarekith; yeah even when loop is off the notes just sustain forever. reallly strange. Thanks for the replies!

[Leisure Club]

any solutions? :\ this is still a huge pain in the ass!