i checked on my comp, its there. what you might have done is moved it to another effects directory. just look through all the folders in the effects panel.
In fact I can now confirm that there is a bug here - I lost red level last week - on Friday is appears again but the other PC running Resolume2 lost its Red level. Last nite it went missing again but the other PC only showed Adjust R/G/B Level - can;t remember which one - but a restart later it reappeared. weirdness