I have exactly the same problem... It's called pipckup mode in the midi control center under fader mode, but it seems it only works with the DAW map and only in the mixer. It doesn't work in any other instances, be it 3rd party VSTs or just internal FL EQ parameters. It always jumps, making it unusable between different instances of EQq or vsts. Same goes for the encoders, btw. I'm using FL studio.