Perhaps I've set things up wrong but it seems to me that when you output OSC of a parameter, then apply an envelope to that parameter - that envelope doesn't carry across, so all you get is the linear ramp from 0-1 on the value you are outputting.
My setup is with Notch, in Resolume I'm using a plugin called LabelParams from subpixel.com - for those who don't know it, it is just an empty effect where you can define you're own slider names and min/max values etc.
So an instance of this is running in Resolume, and in Notch I am listening to the OSC channel, manual test works just fine. When I take this test slider and set it to BPM syn the OSC responds at the default value, but when I add an envelope in Resolume, that value change isn't carried across via OSC.
If there is a fix for this I would love to know as it would really open up a lot of flexibility between the 2 apps
Note: Tried this with native FX in resolume just in case it was the plugin although unlikely, and got the same results